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HomeMy WebLinkAboutWWP2700421(2) Airrigation Engineering Company, Inc. S-- BEGINNING OF FILE FILE TITLE rriqa En in �ertn � 9 9 an � � T� c . . • �. _ <. �: '�,� « .:. ,, � _ rx. �� ff I '�_r frM _•-- -.f �J ��, ._— ��_!� � ` ` � � ",� �. �� � . l .d ��. __, � � ,- ,.► 6 � � � � ' � have been documented by _ of sewer roots with VAPOROOTER scientific experimentation and EPA-registered herbicides,by soak testing at University of California I roots in r m methods.kills o foam —Davis. pipes and through joints,and .,.. inhibits new root growth for 3 p VAPOROOTER root control to 5 years. preventive maintenance methods have reduced costs substantially at Sacramento County Water Quality Division, Sacramento City Sewer and Water'Division, Los Angeles County Engineers Sewer Maintenance Division, City of Los Angeles Bureau of Sewers Maintenance Division. City of St.Petersburg,Florida. Sewer Maintenance Department, and many others. i o / 0 ,O eo 1 c 0 o i Roots are the chief cause of 00 plugged sewers.Seeking mo..lure, n_ .. roots enter water-tight sewer "U ts,one microscopic cell at a time,through vapor leaks. . R Mechanically cutting roots accelerates their growth,as does pruning branches. Root expansion opens,or breaks, pipe joints;infiltration and :; - exfiltration result. Roots,intruding'nto sewage.slo+ I.-e flow,collect grease,silt,and other soils,and form septic pools, generating hydrogen sulfide. Resulting emergencies cause stress,loss to private and public n • property,and seriously affect n ff� nftc, public relations with private users. � �'� Litr��i/tQP �� rr Infiltration overloads treatment P.0. Box H•Carmel Valley, California 93924 (408)659 2000 plants. Bypassing creates pollution. REPRINTED FROM AGRICULTURE NOVEMBER 1971 CONTROL OF TREE ROOTS IN SEWERS AND DRAINS O. A. LEONARD THIS REeour involves studies of tests vermiculite and returned to these pots N. R. TOWNLEY with chemicals for contra, of tree for a week or longer.Treatment was then roots in sewers and drains conducted at made by soaking 411 except the upper 5 Although tree rook in sewers and drains Davis in a lathhouse and field work in cm in the treatment solution, usually for cause losses of millions of dollars each problem areas of Sacramento County. one hour. The roots were allowed to year in the U. 5., there has been very plants used in lathhouse trials at Davis drain before replacing the plants on the little research on control methods. This s included eucalyptus, willow, grape, lower pots. In some experiments, the a report of hilt years o chemical control prune, peach, and cotton.The small trees roots were sprayed rather than snaked. were grown in plastic pots with holes After returning the plants to the original tests in cooperation with the Sacramento punched in the bottoms. Those pots were pot assemblies, notations of injury to the County Department of Public Works. Two placed on top of other pe'.s that were roots and shoots were made periodically. chemicals—methom (Vapam), and dichlo. partially filled with sand oe vermiculite. The plants were broken out of the upper band (Carron)—used alone, or in cam- After the roots had developed extensively plastic pots after six to 10 weeks, and the bination, killed roots in sewer pipes in in the lower pots Ithree to 12 months), entire root systems and stems were ex- one-hour-long treatments by soaking. the lower roots were seps-ated from the amined for browning and death of tissue. Prune, probably because the refols were larger. Dichlobrnil applied with sodium •• '" 6vdroxide appeared to have limited use. fulness in retarding root regrowth on (h \ prime. However, sodium hydroxide " clearly reduced the effectiveness of di• chlobenil in killing eucalyptus roots. '+ Treatment with metham alone,or in com- a bination with dichlobenil, was effective % .ter�y in killing parts of roots that were waked. 1 as well as killing a few cm of untreated I� !rl 14Y rafts. �+ hlrtham is a eonslstant killer of roots y ►' i 'tiff _ of all species and the killing effect can extend well beyond the part treated. On the other hand,dichlobenil kills the roots - of many species. but not all; further,the _ killing does not extend much beyond the portioi actually waked. The main ad- vantage in a combination of the two her bicides is that dichlobenil markedly in. hibits regrowth in lathhouse work. Mcinod wad for fronting roots of neR,grown in lothhouser. Under wine conditions, metham can cause syslemir injury.Several factors in- Fresh weights of the shoots, roots in the were ineffective at 1000 mg per liter. volved in so,h injury include: concentra- upper pots, and roots in the lower pot, Ficloram at 100 mg per liter and 2.4-D tion of chenieal,time of soaking, rate of were measured in wine cases. .A 2.1.5 T at 1.000 mg p,r liter killed transpiratir It. and relative percentage of Screening work involved all herbicides roots but systemic injury ruled these ma. the total soft system that is treated. A available that might be considered use- terials out in our tests. Copper sulfate at concentra .litof 500 mg per liter usually full.Only two of the chemicals tested were 10.000 mg p-r liter killed the small roots does not kill all of the treated roots,while sufficiently promising to be studied ex. of eucalyptus but new roots were formed a concentration of 10,000 mg per liter tensively: metham (Vapam) and dichlo. one month later and were very abundant may cause systemic injury sometimes benil (Carsoron),combinations of which after four months. Iwith a 1 hour soak). A concentration of are already being marketed for root con- Aa exploratory experiment using so- 2.000 Trig per liter appears reasonably trol. Herbicides that were found to be dium hydroxide, with and without di- safe in field use.The abundance and kind ineffective in killing the waked roots I l chlobend. was performed on eucalyptus of foliage is an important factor influenc. hour soak) at 10 or 100 mg per liter in- and prune (table 1), The sodium hy. ing both success in killing roots• as well eluded: paraqual,':iquat,dinoseb,2,4-D, droxide at 20,000 mg per liter was not as the hazard to trees when a large per- 2,4,5-T, MBR-6033, CF-125, RP-17623, effective in completely killing the roots centage of the root system is treated. Eli-119, R-7465, CGA•10832. MSMA, of either prune or eucalyptus; however. Four out of seven eucalyptus plants cacodylic acid, bensulide, and endothall it was less effective on eucalyptus than were killed in one experiment 15,000 mg TA/LE 1. EFFECT OF MEIN". DICHLOIENIL. AND SODIUM TASTE 7. EFFECT OF SPRAYING EUCALYPTUS ROOTS(WITH AND HYDROXIDE ALONE AND IN SOME COMBINATIONS ON WITHOUT WETTING AGENT)ON KILL Of SUCH ROOTS,AS WELL KILL OF EUCALYPTUS AND PRUNE ROOTS' AS Kill OF UNSPRAYED ROOTS IN SOIL IN THE UPPER POT" -- Kill of Reef Root kill Roo#kill Herbicide In MR/literroof eb". n ns.0,info T,wtmrnf aolvlient Kill of ubev. Kill of above of worse Ross WIN Point treated low-pat Metham Dichlobaiil 'Prayed 'prayed •pooh aprged --- raib spot. r rooft aNM an EUCALYPTUSW _ t03% Masson,1,000+ atl"".no Triton%-100 drhle 0 i0 • sone Dhlebainil 100 s mR/lfer on I ns HaON a -16 - NaON 70.000 10,000+ 10,000 700 neto de+d -6 net Ml deed -10 dishlobona too 9 S - 70,000 400 said 7 Chekk 0 - - 40,000 800 dead 17 dead 7 PRUNE Eepf.7 Mee hos, 1,00L' t0 6 ,<d-af. e0.000 am deed 9 dead Dichlabw ea ll too 6 only•moll roots dead - 00,000 Boo dais IF deed P Man-n 1,000t •Rero,d. were obtained 7 week. fellowina Me 'prprlrq. In dichlobenil 100 10 10 mob.. I ON 10 16raw wen the.boob killed. NaOH SC 000 9 -1 moaame nit s in . applied with i USDA bob .prayer once a Me fro. a,d NeOH 70.000+ na nob in r ho applied Position a and .Prayed once ores allowed ro didflobenll 9 -1 few their. Sprays app0ed wiM a SWd Tailor sip 4e SO Pd, 0.5 mph, Check 0 - - and a fil 6 to 10 inch., from rail, dvnna War" Volume would be"Ovelent to akov,42 pal/nn of drein. loot .is reeked 1 hr. Rae, ki11 aim d.n,m nid 7 vto o ota. }traits pert n/rait IraYnp 0 ro 10;. per liter with a I hour soak when one. half or more of the root system was treated. while none of the 20 plants that had less than one-half of their rexn stistem healed was killed. Peach plants (which are more rapidly transpiring plants) 1 _ were kilted by the same treatment on one-third of their root system: while plants treated with 2,000 mg per liter for 1 hour were not injured when 1/, of their root system was treated. This percentage would seldom be treated in the field. it car"�s should be recognized that small, lath- &y�-1g, _ �. house• plants can be killed by a lethal transfer of metham from 15 'it) 18 cm, Examples of tree roots pluyyinq ,ewe.Ilnea in Sac,on,emo C.onry. while such a transfer would be of no such consequence on large trees in the Sacramento County for a number of treatments might be successful in the field. year; but only during the past two years field—or the length of time control of have the results been masonahly success, roots might be expected. It appears that Spray trials ful. In four treated areas of Sacramento reasonable root control can now be Spray trials were conducted because County sanitary sewer system involving a,hieved for at least 114 years.There was flooding of lines is not always desired a total of 75,637 ft, root stoppages were no injury to shrubs or trees in tht four due to the hilliness of terrain or the size reduced from 50 to )00ci for a period arras mentioned. However, two shrubs of the drain (which could greatly affect of six to 18 months after treatment. To were injured in an extensive trial this chemical cost). Since there is commer. insure that solutions will have uniform year. cial interest in spraying, two tests were toxicity, a tanker is being built to mix The amount of chemical needed to conducted to learn just how effective the chemicals prior to placing them in treat perhaps 4,000 it of fine a day is spraying might be. The results in table the lines. In addition, a certain amount very small compared with total flow, in 2 indicate that spraying can be effective, of"head"at the upper manhole is needed the sewage receiving plant, For example, at least on lathhouse grown trees. Weak. to drive the solution into (,racks and up 20 gallons of commercial preparation was nesses in the spray method include the home service lines—which are often used one day to treat 3,596 It of line, fact that the solution is not forced into heavily filled with roots and can stop the while the receiving plant received a total cracks where roots are located or up trunk lines. A commercial preparation flow of 4.9 million gallons during the home service lines which are often filled of "Vaporooter is being used, with a same day. The chemicals are greatly di- with roots, Soaking is the preferred concentration of roughly 3,000 mg per luted and have been undetectable to date method where it can be used. liter metham and 200 mg per liter di- in the receiving plants.No problems have Field experience ehlobeuil plus a wetting agent. been detected in the treatment process. What could not he determined from Results of spray application in the field Field trials have been conducted in lathhouse trials was whether similar did show root kill in the drains but some live roots were still in the joints. It would Root control experiment in lathhouse. Treatments all effective on aucalyptw, but regrawth occur- appear that with spraying,the treatments tins with Vapam(metham)used alone. should be more frequent than with soak- , ing. Spraying is considered a second f choice in Sacramento County, except in t , ye large drains where cost of materials would be too great with the flooding method. Field trials in the city of Sacramento e with commercial preparations consisting +. of sodium hydroxide at roughly 12,000 L # mg per liter plus dichlobenil of about 130 ! mg per liter w-•:e successful in killing roots in lines of 3 mm diameter or less but did not kill roots in the joints. Soak- ing period was I hour. Metham alone or in combination with dichlobenil was far more effective in killing roots. 0.A.Leonard is Lecturer and Botanist, Agricultural Botany Department,Univer. siiy o/Cali/ornia,Davis.N.R.Townley is Senior Underground Foreman, Utilities _.----Pow Division, Maintenance Section, Sacra. mento County Department Df Publfe Works,Sacramento. AIRRIGATION ENGINEERING COMPANY, INC. 40.1/659-2000 Box H, Cumel Valley, Ca: rnia 93924 Developers of VAPOHOOTFWc PATENT Nos. 3,741,007, 3,763,89E AND 3,797,646 is happy to make this report available ►�weom "Lather that doesn't need a blad Shaves sewer maintenance costs. About a decade ago,botanists at the University While Vapurooter's fumigant kills the root cells. of California noticed that cutting roots,like prun- allowing them to rot away and slough off gradu- rung trees,promoted finer and faster growth. Big ally, the herbicide creates a barrier to regrowth metropolitan areas like Los Angeles City and which remains effective for two and more years. County, Sacramento City and County and St. Petersberg, Florida already suspected that. They All of this isn't a pipe dream. It is one of the had been hacking away at sewer roots for years best documented stories in the sewer maintenance and their problems just kept growing faster. field. St. Petersberg was doing 1200 dig-ups a year. You can read about it in the EPA series(600/2- 77-017) issued last December. . . or in Neal Then Airrigation Engineering Co.,Inc.came up Townley's report from Sacramento County in 1973 with a unique solution—Sanafoam Vaporooter. . . . or in the detailed studies done by Dr. O. H. Leonard and Dr,John F.Aherns way back in 1969 At first it did seem a little ridiculous to think at the University of California at Davis. . .or that anyone would propose using bubbly foam to even in the Buffalo News article written May 28 do the work which had defied brute force and by a reporter John Sinclair. That's the article sharp steel. But cities soon discovered that Vapo which calls Vaporooter "the lather that doesn't rooter was no light weight when it came to killing need a blade." roots . . . and that it was still no threat to the delicate digestive system down at the sewer John came up with a catchy phrase there— one treatment plant. that tells the story. Sanafoam Vaporooter contains a foaming sur- For more information and documentation than factant that strips the grease and sludges off the you can probably handle, write to: roots and lets its tough herbicide/fumigant for- mula attack the roots without harming trees or Airrigation Engineering Company plants. P.O. Box H. Carmel Valley, CA 93924 Attack t, Sewer Root Growth Wft Sanafoam Vaporooter® and the ' Pro-Foamer' rt M Fingertip Controls for Engine Well Provides One Man Operation Ease of Maintenance Non-Corrosive Fasteners Mean Long Life r Power Reel Reduces Fatigue, Increases Production 1 , = ' R Professional Appearance, Easy to Clean i Sanafoam Va-iorootev and the Sa.'ety in Chemical Handling / Cuts Costs••.•Not Rocs The "all new" VaporooterC> Pro-Foamer Foamaker loaded wdh safety benefits and power control systems provides agencies with a clean, efficient and safe method that make the application of Vaporooter p even more to control and inhibit the regrowth of roots in sewer lines. cost-effective. Exclusive Use Proven Economy Exclusively designed for use with Sanafcam Now we can prove more conclusively than ever before Vaporoolerte' herbicide fumigant, the Pro-Foamer is that Sanafoam Vaporooterw' and the new Pro-Foamer is a safer, faster, more dependable and more economical method to kill sewer roots than using mechanical tools. The Pro-Foamer is built on a rugged, tubular steel ' frame trailer with a weight capacity of 5,000 pounds. A e fiberglass shell houses all components in a clean and ' safe environment. The power reel contains 500 feet of 1-inch diameter k discharge hose. At the turn of a switch, the hose can be Ir brought forwards or backwards. Ease of Operation One man can operate the unit with fingertip ease from the side-mounted control panel. Gauges, switches and Sanafoam Vaporooter kills, inhibits sewer root growth dials are color coded and labeled for instantaneous 9 monitoring of all operations. The solution tank can hold 190 gallons of water and Lightweigilt Maneuverability k t W Convenient Tool for Ease -- menor Vap SPECIFICATIONS orooter a "Pao-Foamer" Foamakei Stolage Control Panel: Liquid and air psi betweca 100.130 110 gpm foam output at 20 to 1 expansion ratio Control panel at rear right side Key operated ignition slarl uolage mete, / Amp meter / Engine throttle and choke 5 gpm capacity flow meter / Glycerine filled air and liquid nressure gauges 12 volt electric sight gauge for lank volume Momentary toggle switch for electric reel operation Chemical and rinsing 3-way loading valve Compact Rugged Trailer 50 amp circuit breakers protection syslem on power reel Friction brake with safety hand crank Reel: Reel 36" high by 36" wide 500 feet 1" Synilex high pressure foam discharge hose i Forward and -verse reduction drive electric !6 powered reel Tank: 200 gallon fiberglass solution tank Corrosion resistant vrnled lid fastener Safety Steps for Corrosion resistant fasteners and fittings on all Tank Accessibility ++ro+r finished surfaces vaPOR00ifR Solution line strainer Power System: Enclosed engine compartment e 'Pko-Foamee Engine compartment safety switch 12 volt 55 amp explosion proof motor 10 hp electric start air cooled gasoline engine 15 amp alternator Centrifugal heavy duty clutch 10 gallons of Sanafoam Vaporooferp` whreh will produce Belts individually adjustable 4,000 gallons of roof killing foam—enough to fill more Ergine-compressor and pump base rubber mounted than 1,600 feet of 8" pipe. Heavy duty industrial 12 volt battery valve Solution batches can be loaded safelv at street level 230 Smith pcioo pressoram r-4 evI w ih pressurefety 150 psi safetyerele&e fore from a built-in .bemical lift system. That means operators valve is will have minimal contact with the solution. Body: I Dependable Construction Full cover fiberglass shell Is, Corrosion resistant fasteners and fittings are used ! Tool box 24"x48"x27" throughout the Pro-Foamer for long-lasting dependable I Security lock on all compartment doors A I operation. Trailer: When not in use, the Pro-Foamer can rest in safety 7*15 6-p1y highwav tread Ines 5.000 lb. a drop spring mounted axle because all compartments are locked. Tubular steel frame r The features of the Pro-Foamer translate into benefits 2" ball hitch be for your agency of Safety, Dependablity. User Pride, Running lights Cost-Effectiveness and High Production. Parking screw-jack Contact your nearest Vaporooterw dealer for a Stainless steel rear bumper tom demonstration and more information. Dimensions: PATENTED AND REGISTERED PRODUCTS OF Weight . . „. „„ „„„ ......... M lk unladen Airrigation Engineering Height I . ... .... .... ... ..... . .. ......... .. . Company, Inc. Length. . . . .. .. .... . . . .. . . . . ..... ......... 172„ nd Carmel volley, California Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 112" __� Haw roofs grow in sewers `The intrusion of roots into excellent trail for the root to outside the pipe where the more sewers is probably the most I follow. 1[ even a vapor leak exists serious and costly structural destructive single element that in the pipe. the root concentrates damage may take place. faces those maintaining a its effods at that point. Since Herbicide Fumigants wastewater collection system, some pipe joint compounds are of Herbicide fumigants present the says the U.S. EPA Environmental nutrient material themselves, the most effective method to kill roots Protection Techno:ogy Series. cool may entirely girdle the joint and inhibit their regrowth without There are more .ban 2-biilioa- before entering the pipe. destroying the above ground 600-million feet of sewer pipe in Accumulating Debris plantlife. the United States and 60% of all Once inside the sewer pipe, Vaporooter(" is a herbicide collection systems is made up of the root takes on the appearance fumigant composed of Metham pipe with a diameter of S" or of either a "veil" or a "tail" type and Dichlobeml that enters the smaller. structure. 11 lows in the pipe are sewer as a foam. Only roots The potential for root intrusion fairly constant, the root mass within the pipe and a short to inhibit lows, produce hangs down like a veil to the distance outside of the pipe are i stoppages and damage valuable affected. Trees and shrubs pipe is enormous. - I immediately above ground L•e Roots normally do not grow not harmed. underwater and seldom cause The U.S. EPA says, "No other problems where ground watery \ method of control approaches the covers the pipe. But :n most — effectiveness found areas this is not the case. in...Vaporooterria " One Cell at a Time Three to Five Years When a seed germinates, it t Vaporooteofl can kill sewer adds one cell at a time toward I roots and prevent regrowth for the best environment from which three years and longer without it might extract nutrients and / harming trees or plants. moisture. The growing point of Agencies throughout the Nation the root moves best through loosely cultivated soil. have discovered Vaporooter not only controls roots, but it is cost- � The most common practice to elective compared to other lay sewer pipe is by open trench. normal low level where they maintenance methods. The back-filled soil offers a good accumulate deposists of grease, growing medium for roots. slime and other debris. Proving Vaporooter Because the flow in sanitary Conventional methods of I An analysis of your collection lines is a higher temperature than removing roots by culling or system by an Authorized the soil, this causes a I tearing tend to increase regrowth I Vaporooter ri` Distributor will condensation to appear on the similar to pruning a hedge. prove the economical and crown of the pipe. Removing roots inside the pipe preventive maintenance As the warm moisture from the solves the immediate problem of advantages using VsporoolerCR. sewer pipe evaporates up through stoppages, but does nothing to Give them a call. They're here the soil, the vapors offer an retard the growth or kill the root to help Vaporooter Products are%ngte Soorce, Proprietary Items Registered and Patented by AIRRIGATION ENGINEERING COMPANY, INC. fFOR MORE INFORMATION, CONTACT: AIRRIGATION 'S APPLY' .TOR ASSEMBLY ' for SANAFOAM® VAPOROOTER® Controls Sewer Roots Vaporooter t I I I This unit, with the AV-100 FOAMAKERA produces 100 gallons of Sanafoamv Vaporooter- lather per minute. This enables a 3-man crew to treat 2.500 feet of 6 I+ Inch or 8 inch sewers per day to kill roots and control regrowth for 3 to 5 years. ALi EQUIPMENT IS SKIDMO: FNTED - ON TRAILER OR FOR A ONE TON PICK-UP I TRAILER AND SKID- i-A'r.RES OF A`J-100 FOAMAKER:' TRAILER UNIT MOUNT EQUIPPED WITH DIMENSIONS: Engine: B hp Gast iron Kohler 200 gallon Poly-olefin solution tank Solution Pump: Heavy duty Height. 5.9, y y. positive displacement Width: 5191, 500 of 1' i.tl foam discharge hose uptake-3-5 gallons per minute. Length. 13'10" Hose reel with manual rewind Compressor: 2 cycle, hi-pressure with safety valve Weight: 1650 lbs. One inch hose reel swivel Clutch: heavy duty One 6"to 8" hose-thru pneumatic plug Mutller: extra-quiet SKIDMOUNT UNIT One 10" to 12" hose-thru pneumatic plug Flushing port with garden hose connection DIMENSIONS. Inlet air and liquid strainers. All vahes are quick 4'3"ck shut- Width: 4 It off All pressure hoses are hydraulic Length. a t6 Safety control of chemical concentrate by pumping it WeighP. 1100 lbs. TRAILER INCLUDES: directly to water tank with solution pump Instrument panel with: 2" bell hitch Weigh:SSO Ibs I Spare WE,and running fights Solution pressure gauge. control valve, and flowmeter ! Tool box: 23" x 24"x 48" Air pressure gauge and control valve. I I AIRRIGATION ENGINEERING COMPANY. INC Box H, Carmel Valley,California 93924 s Telephone(408) 659-2000 381 VAPOROOTERSPLUSisanonsystemlcchemicalforcon- 18.9 LITRES NET WARNING 5 G trol of roots In sewer mains, drain-lines, and other con- duits.Root removal helps control septic Spots that produce • Avoid breathing s. nr or spry; mbL slimes and ne laity acid en sulfide These organic materialsVAPOROOTER" PL • Do not get In eyes,on akin,or clothinp. Oren generate hydrogen sulfide In the .,ewer mom. Only • In case of contact, Immediately remove contaminated the roots and organic deposits In the sewer lines are af- clothinB or shoes and flush with plenty of water, and fected by VAPOROOTER® PLUS. apply soothing lotion;for eyes,flush with water for at A FOAMING FUMIGANT lent 15 minutes and pet medical attention. PROCEDURE FOR CONTROLLING • Wash and dry clothing and shoes before re-use, ROOT GROWTH IN SEWER MAINS RIDS SEWER LINES OF ROOTS • when applying In enclosed areas. wrier a mask or BY SOAKING THE LINE WITH respirator of a type passed by the U.S.Department of ROOT GROWTH CAUSES SEPTIC SPOTS IN SEWAGE FLOW Agriculture for VAPAM" protection. VAPOROOTER® PLUS SOLUTION ANAEROBIC DIGESTION IN THIS RETARDED FLOW CAUSES G • Keep children and pets out of area being treated. us. Pm. Nn. 3.092,568 n:.e +.763.e9c DEPOSITS AND GENERATION OF HYDROGEN SULFID • Do not Store near feed or foodstuffs. 1. Determine which of the collection Iln.as have known ACTIVE INGREDIENTS: root problems. Start with the firm manl,cle section in Sodium methyldithiocarbamate (anhydrous) . . ....... - . • Keep container tightly closed when not In use the upstream end of the line and be sure there are Uichlobenil — 2,6-dichlorobenz — - • Do not store below 0- F. or above 90- F. tour or five sections downstream which can be soaked 'HERr INGREDIENTS:_ - • PERFORATE EMPTY CONTAINER, CRUSH BURY progressively with the same solution by passing the with *sate In Gals area away from crops end water solution downstream. per g•gan L supplies 2. Plug the main securely at the manhole on trd Ewn;atream end o1 the first section tobe soaked. A p .AT 1 A PRODUCT INFORMATiOh to the upstream manhole of this section a L H B VAPOROOTERS PLUS is a water-soluble,foam-type,Bur- of approximately 40 gallons a minute.Willa th. water is beingadded to the manhole, add VAPOR OO 's « hell co a•ny .am U.S.ML fr•a 2.79•Sae,i711AW Whentacg- popctive rly applied of VAPAMin plus dl OOTEnll. PLUS concentrate m sufficient quantity to us all When properly aoplled to sever mains.VAPOROOTER® WARNING PLUS kills and Inhibits the regrowth of plant roots In the the required amount of water to fill the bectionN ,he Interior of the mains. main and the taps will have 1% volume/volume KEEP OUT OF REACH Of CHILDREN VAPOROOTER®PLUS in solution. VAP3ROOTER®PLUS liquid Is converted Into a gaseous EXAMPLE:Aasuni the first auction to be soaked fum'9ant and ismaintained In snactiveloam state on pipe Is a 6-Inch main 400 feet In length, It will require Harmful if inhaled or swallowed. and root su4aces, when the sewer mains are properly sprayed or soaked with the VAPOROOTER® PLUS solu- ma gaind a per toot. or 600 gallons to fill the Irritating to eyes, nose, throat, and skin. lion.Dichlobanll,a new root-reg•owlh inhibltoa Is a slight- main,and a 1% will t e solution of 6 gal- (See lea panel for additional warnings.) ly soluble crystalline solid whir,. Is readily absorbed by ROOTER&PLUS win require theconcentrate, addition e,8 Bel- the rent and adsorbed on orgaric and Inorganic eolloida Ions of VAPOROUTERS PLUS concentrate. 19�1 of aludgeand clay.In the the joint The presence oldichio- 3. Ana: this solution has been allowed to stand In the manufactured bsn0 In the the Iolnts furnishes a residual control of line for at least 30 minutes, and preferably for an exclusively for root!@growth by Inhibiting the development of the active- hour,then the next downstream manhole should have ly-dividing insistent cells in the root tips.Thar rare,now EPA Reg. No. 9993-2 A I R R I G AT I 0 N ENGINEERING (0 M P A N root Shoots of bras lea which may regrew from outside EPA Est. 476-CA-1 the pipe joints(where cracks or leeks occur)are retarded or inhibited In their growth. (791109-41W ••Heg. TM (Stauffer) U.S. Pat. 3,797.646 poor Office sox H Comsat Valley,California 93924 PHONE: ACeITATE BEFORE USING. RINSE CAN AND the main plugged and the upstream plug should be re- SO' to 80'.The spray must have food hydraulic Impact RES NET 5 GAL. NET moved,allowing VAPOROOTERS PLUS solution to fill and strike the pipe and roots fro a all aides. f sti es, o this section of the line. Again, this re-used batch 01 application gives the most a9aetivs removal of slimes and Lsolution should emain in the line for 30 minutes to an they acids from the Dipe and root s irt.Th end produces P0R0 OTER LU s hour. of following this method of passing the same the most fumigant effective loam characteristics.The effectiveness batch of solution down line for four or Live sections o of the formation ofthe small-bubble bubb a etypenand removal of lire, it is feasible to use the same batch of solution to neat 1500 to POGO feet of line at a total cost for VAPU- panic films from the surfaces of the Dipe and roofs. A FOAMING FUMIGANT ROOTERS PLUS of i Oc per toot of S'sewer mama. 4. Where the same batch cannot be used In several down- USE WARNINGS stream sections of root-Infested lines,we cnn turnlah USE PROMPTLY AFTER MIXING WITH WATER.DO NOT RIDS SEWER LINES OF ROOMS special plugs that make It practical 10 Dump and trans- ALLOW SOLUTION TO STAND FOR MORE THAN 24 DOT GROWTH CAUSES SEPTIC SPOTS IN SEWAGE FLOW. port the VAPOROOTERS PLUS solution to another HOURS. OBIC DIGESTION IN THIS RETARDED FLOW CAUSES GREASE li es�an be lean plugged with or out back flow special inflatable On Service ice Wash and hush all equipment with water after each day's DEPOSITS AND GENERATION OF HYDROGEN SULFIO to u vse.Disassemble valves and nozzles and clean carefully. Slid against flooding. BLE LAWNS AND PLANTS. 0 REDIENTS: °' s ay method will be necessary to treat e KEEP OFF DESIRA mefhylothiocerbamate (anh)Brow) som "'""' " '- "-- k, due to the local-� -- _ ` se :s hat are impractical to soak, Do not spill or discard solution Haste within three test of benil — 2.&dichlorobenz 9 ft7„ n of a root Problem• and line grades as reee, the ddp-fine of plants,ahruDs,or tress.11 excessive sDgl• REDIENTS:_ - t0 se tape. age occurs on the street or other paved areas In the SEWER PIPE CAPACATY vicinity of greenhouses, where growing plants are prow Ow aWW Lant cr where fumes may enter other buildings containing Pips inches 1-loot length al. growing plants, Immediately flush the spill thoroughly 4 inches 1.47 gal. A R T A with water spot at moderate pressure,a prevent fumes L H B S inches 251 pal' from drifting toward critical Still S inches 281 pal. hwmlul co Pont' .a"u.a.Pat Not.L74&wi LIOIGaa 10 inches 4.1 gal. DO NOT USE IN CONFINED AREAS WITHOUT ADE• 12 inches 5.9 gal. QUATE VENTILATION. WARNING DIRECTIONS FOR USE KEEP OUT OF REACH OF CHILDREN OF SPRAY PROCEDURE SPECIAL NOTICE us. Pat. Now.3.741,8117 u+d e,ese,le VAPOROOTERS PLUS should not be used to treat roots Harmful it Inhaled Or sWAIlowed. Add three parts water to one part VAPOROOTERS PLUS. in storm sewers or other drains where waste water will not and spray Interior of&inch and S-Inch mains at ratan one be treated or controlled.VAPOROOTERS is effective for Irritating to eyes, nose, throat, and skin. gallon of this solution to each 100 fast.Spray 1 G Inch end Killing roots In storm "'war*or drains.VAPOROOTER® (See lee panel tot additional wamings.) 12-Inch mains at rate of one end one•hell allone of tas no dichlobenll or other additive which may haws an solution to each 100 feet. sxlended effect on Sol,or plant growth. Hence, "I'll ut ©1971 The spray equipment should be of the hydraulic type to to use under these conditions. manufactured produce line pressure of 100 to ISO pounds per square inch. Two hollow-cone, fog-type nozzles should be NOTICE: Alrrlpallon Engineering Comb+nY m+ksa no exclusively for mounted on a carriage that will maintain the nozzle post- warranty,express or implied,fW,hooding the wursnr P t- NATION ENGINEER 1 N�� C 0 M P A N Y, I N E. Put- lion near caner of pipe being sprayed.Ono hollow-cone merchantability and fitness for any Particular whl" spray Should be directed forward—the other,to the rear pass, conconlnp this maerlai, sxcaq tlrow wAkD are OMu Box N Carmel V+Itsy. California 90924 PHONE:406-469-2000 — In a manner to contact all pipe orlacest at angles 01 contained On this robot. RE USING. RINSE CAN AND ADD TO BATCH (PRECAUTIONSeon'd) slightly soluble crystalline solid which is re SAI�ilAF®AMC • May be harmful i1 swallowed or inhaled. readily absorbed by the root and adsorbed o root and organic and inorganic colloids oft a •Irritating to eyes, nose and throat sludge and clay,in the file joint Theapresence •Avoid breathing vapor or mist of dichlebenil in the tile joints furnishes a re- 9 to not get in eyes,on skin,or clothing. stem control of root regrowth or inhibiting VAPOROOTE • In case of contact,immediately remove:,)n- the development of the actively-dividing men- Laminated clothing or shoes and flush with stem cells in the root tips.-:herefore,new root plenty of water, and apply soothing lotion. shoots of branches which may regrow from for eyes,flush with water for at least..min- outside the pipe joints(where cracks or leaks utee and get medical attention, if eye irrita occur)are retardedor inhibited in theirgrowth. /� Lion persists. SANAFOAM® YAPOROOTERS is a noewer A FOAMING FUMIGANT • Wash and dry clothing and shoes before re main chemical for control of roots it sewer use. mains, drain-lines, and other conduits. Root removal helps control septic spots that pro- • When applying in. enclosed areas, wear a dues slimes and fatty acid deposits. These RIDS SEWER LINES OF ROOTS mask or respirator of a type passed by the organic materials often generate hydrogen ROOT GROWTH CAUSES SEPTIC SPOTS IN SEWAGE U.S. Bureau of Mines for VAPAM" protec- aulflde)n the sewer main Only the roots and Uon. organic deposits in the sewer lines are af- ANAEROBIC DIGESTION IN THIS RETARDE FL O E • If eyes smart when working in manhole fected by SANAFOAM®VAPOROOTER9. DEPOSITS AND GENERATIO D OG S I where VAPOROOTERS SANAFOAM'a is present, leave area and use blower c mask PROCEDURE FOR CONTROLLING ACTIVE INGREDIEN before re-entering manhole. ROOT GROWTH IN SEWER MAINS Sodi=on 1di a ate to c Keep children and pets out of area being BY F!'.LING THE LINE WITH Ichl be i fi-dich r en2onitriie treated. VAPOROOTERD SANAFOA Ell IN R I _ • Do not store near teed or toodstuti U.S.vat Nos.3.I4a,807 and 3,074.e26 • Keep container tightly closed when not in t. Determine which of the collection ine use. have known root problems. Start with t. on—L571bs. e Do not store below 0' or above 90• F. first manhole section in the upstream a FORMULATION OF VAPAM'• a PERFORATE EMPTY CONTAINER OR BURY of the line. with wastf in safe area away from crops and p Plug the main securely at the manhole PLUS DICHLOBENIL water supplies. the upstream end of the first sect, ion to be sr.°"••enemlur campeny'a Rea. T.M. and U.S, Pet Nw. t IFq.55q ani.aos foamed with a plug that can be adopted to DANGER PRODUCT INFORMATION receive a one-inch hose connection from •he FOAMAKERS and pass the SANA- KEEP OUT OF REACH OF CHILDREN SANAFOAIIf® VAPOR00)ER6 is a water sot- , OAMID through the plug into the upstream ubie, framing, surtace-active formulation of end of the main to be foamed. Be sure the CAUSES SKIN BURNS VAPAM" plus Dichlobenil. When properly plug has enough resistance to the back- applied to sewer mains, SANAFOAMfe VAPO- pressure of the foam (which normally does (See left panel for additional precautions,) ROOTER® kills and inhibits the regrowth of not exceed 30 pounds per square inch) to manufactured plant roots in the interior of the mains,and by force the foam down line, until the foam exclusively for absorption into the root cells,kills the roots in appears at the other end of the line being andthrddghthepipejoints. treated. AIRRIGATION ENGINEERING COMPANY SANAFOAW VAPOROOTERO solution is con- Repeat the above procedure in sections verted into a gaseous fumigant and is main- that have root growth downline, or move tained hi an active foam state on pipe and root applicator to other sections of collection Post Office Box H Carmel Valley, California 93024 PHONE: surfaces, when the sewer mains are properly lines to be foamed with VAPOROOTEM Pat. No. 3,797.64G 5 GAL. NET EPA Reg. No foamed with SANAFOAMX VAPOROOTER'S. SANAFOAMO. (791109-5M) Dichlobeoil, a new root-growth inhibitor, is a It is important to know that SANAFOAIM® ••REG. TM (ST•UFFER) 18.9 LITRES NET EPA Est. NO. FOAMAKERS Generators are available from AIRRIGATION only. FOAMAKERO Generators are manufactured for AIRRIGATION to ou r SA �� a VAPOROOTERS can o applied in any single To make VAPOROOTERal solution, I Froduce C� section of line where conditionsdictate,either any desired quantity ofVAPORpOTER®SANA- downflow or upflow, on normal or hillside FOAMS, use the following table: grades.To allow flow to drain from progressive Add SANAFOAeth FOAM manhole lengths,it is desirable to treat down- To Waten VAPOROOTERS PRODUCED POROOTER O stream until a root infested collection line has 5 Gal. . . . . 1 Quart : 400 Gal. her n completely treated. 10 Gal. . 2 Quarts. 200 Gal. DIRECTIONS FOR USE OF 20 35Gal. . 775Ga . 400Gal. 35 Gal. 1.75 Gal. . 700 Gal. SANAFOAMm VAPOROOTERV 40 Gal. . . . . 2Gal.. . 8WGal. WITH FOAMAKERa GENERATORS 60 Gal. . . . . 3 G Gal. . 1200 Gal. A FOAMING FUMIGANT 8 760 0Gal. . . . . 3Gal.. . 1400Gal. First determine foam allons,neces- 70Ga1. 344Ga1. . 1400Ga1. sary to fill the section of server line to be 80 Gal. . . . . 4Gal.. 16000al. RIDS SEWER LINES OF R00TS aced with SANAFOAMS. This volume is 10OGal. . . . . 5Gal.. 20MGal. e ily computed, using the following chart of For best results use 5% SANAFOAM®VAPO. DOT GROWTH CAUSES SEPTIC SPOTS IN SEWAGE se er pipe capacity: ROOTER® solution. OBIC DIGESTION IN THIS RETARDE FLO E S sauons of Foam S AND GENERATIO DOG $ 1 Pipe Diameter t-foot lengths USE CAUTIONS DEPOSITS ` 4inches .7 USE SOLUTION PROMPTLY AFTER MIXING. NGRE �SE FIR PIPE 6 inches 1.5 Wash and flush all equipment with water after m di a ate ro ACITY g inches 2.5 each day's use. 9 inches 3.3 KEEP OFF DESIRABLE LAWNS AND PLANTS. bei 6 diChl r enzonitrile 10 inches 4. Do not spill or discard solution waste within R i . 73.98% 12 inches 6. three feet of the drip-line of plants,shrubs,or From this table,compute the quantity of foam trees.If exce«ive spillage occurson the street lOC.00% necessary to real a length of sewer, by multi- or other paved areas near growing plants, im- I en-9.571bs. plying the pipe length by the foam required mediately flush the sr ill thoroughlywith v ater- FORMULAT OF VAPAM'• perfect spray at i, crate pressure, to prevent fumes from drifting toward critical areas. PLUS DIGHLOBENIL EXAMPLE: Assuming the section of line to THIS PRODUCT IS TOXIC TO FISH AND nemwal ra.panT's Reg. T.M. sm u.s. P,t. No:. 0.766.5541 znr.ws. be filled with foam is 6" i.d. and 400 feet OTHER AQUATiC LIFE long, 600 gallons of foam will be required 00 NOT USE IN ATORM-GRAINS. DANCER just to fill the line. DO NOT USE IN CONFINED AREAS WITHOUT KEEP OUT OF REACH OF CHILDREN However,400'of 6"line could normally have ADEQUATE VENTILATION. 10 household connections of 4' diameter. CAUSES SKIN BURNS Extensive tests indicate that an average 50- SPECIAL NOTICE foot length of these 4' connections will ue SANAFOAAfs VAPOROOTERO should not (See left panel for additional precautions.) filled with VAPOROOTERS SANAFOAMS. be used to treat roots ir, storm sewers or manufactured Therefore, approximately 500 feet of 4" other drains where waste water will not be exclusively for houselineswill require 350 gallon>of SANA- created or controlled. VAPOROOTERe to at- C COMPANY,P A N Y, INC. FOAf ta. We suggest that you use approxi- active for killing roots in storm 9-wers or NATION ENGINEERING mately950gallonsofVAPOROOTERaSANA- drains. 01972 FOAMS to be sure of filling the average 406 NOTICE: Airrigallon Engineering Company, foot, 6" sewer with 10 house connections. Inc. makes no warranty, express or implied, • Box H Carmel Valley, California 03324 PHONE: 408-659-2000 FOAMAKE..R6 Generators produce 20 gallons of Including the warranties of merchantability 3,797.646 5 GAL. NET EPA Reg. No. t'993.3 SANAFOAMS from each gallon it solution. andlor fitness for any particular purpose, 5m, Ths,efwe,48 gallons of solution will Vyroduce concerning this matorial,except those which (SIAUFF[RI 18.9 LITRES NET EPA Est. No. 476-FL-1 960 gallons of VAPOROOTERS SANAFOAM®, are contained on this )abel. R® Generators are manufactured for AIRRIGATION to our specifications, by Waukesha Foundry Company, Inc., Waukesha, Wisconsin Root out those sewer clogs Stan Stewart,Maintenance Man- agement Division Engineer for the Washington Suburban Sani- tary Commission, tells about a contract chemical root control treatment service that provided y an 18-month guarantee against _ root plug-ups and reduced long- term sewer maintenance work r p and costs. Pre%cntise nrainwn:mce of ens services 4 is an area often overlooked and under- financed. This is particularh true with respect to water and sewer systems. •�_� ' which,in the public eye.are out of sight - J'•y t: 'F and out of mind—that is.until customer service is affected,or raw sewage backs . • , into basements.At the Washington Suburban Sani- tary Commission iwss()near Washing- ,Or- ton. n.c., engineers found that using tr;• "- outside contractual services to handle maintenance during peak periods helped level out their work load, maximize -� n•sources,and permitted them to provide ` roved service to wssc customers. A systematic chemical root control treatment, an outgrowth of the com- mission's maintenance program, is one example.Since 1979,the Sanitary Com- mission has treated over 50 miles of sewers, mostly under contract with an outside firm.The program is helping to prolong the fife of the sewers and elim- •inate trouble calls due to root related `'+" ..�' plug-ups. •.-a Established in 1918.wxse'senes Mont- gomery a nd Prince George'%counties in - "'• Maryland. just outside the District of 's`y"'>,• Columbia.The Commission has 265.000 customers overone million people. Vaporooter herbicide was pumped into manholes .Theloamherbltaduklllsdro0lsMtM The sewer system consists of about sewer pipe and up to 24 inches from the pipe. .1,500 miles of pipe,primarily construc- ted of vitrified clay and concrete. and expensive maintenance technique- rose- a history profile of troublesome sewer much of it more than 60 years old. But tine drag cleaning at three-month, six- mains;age,typeand sizeof sewers:drag despite the age of the pipe,most of it is month,or one-year intervals,depending frequency:stretch length:and location. in good condition. on the severity of the problem. Time The Commission has found this infor- In recent years, root intrusion from between maintenance cleaning%as based mation valuable in predicting sewer maple,chestnut,and particularly willow on a sewers history as recorded in the problems before back-ups occur,and in trees has become a problem. Tree roofs commissions computers. If a sewer taking fast remedial action to present have caused significant structural dam- section on a given schedule plugged up, trouble calls. agetothe pipes.Even more troublesome, it was upgraded to heavier equipment In 1979. wssc first investigated the however,have been the frequent sewer or a more frequent maintenance use of a chemical root treatment herbi- backups which resulted in public rela- schedule. cide called I aporoote•r. developed by tions problems with customers, and The routine drag cleaning program Airrigation Engineering Co. of Cali- •n in liability suits for damages. was first computerized to identifv fornia,and distributed in the northeast aced with alternatives of slipfining, stretches of frequent problem sewers. U.S.b7 Dukes Sales and Service.Syra- point repair, routine drag cleaning, or Asthe preventive maintenance program cuse. N"ti. replacement. the commission several progressed. however, the information the chemical foam herbicide kills years ago launched a periodic mainten- logged provided an accurate map and roots both inside the pipe and outside ance program consisting of the least inventory of the wssc system.including the pine to a distance up to 24 inches AMERICAN CITY& COUNTY:August 1983 27 � r • I • 1 r •• t scor, r r roti i � R e } t e Author Stan Stewart reviews treated sections of WSSC sewers with Kevin Duke of Dukes. away.Growth inhibitor in the chemical lines near the seiner main, was the contractor's I8-month guar—- prevents root regrowth for a period of And as an additional benefit,since it tee. The company agreed that if if from two years up to five years, was not necessary to divert the sewage were any stoppages due to roots in the The chemical root control process flow during the application process, sanitary sewers within 18 months after seemed to be more cost effective than customer service was never interrupted. treatment, they would pay SI00 to routine drag cleaning,but the Commis- After six months,and again after the compensateforclearing the section,and sion was concerned that it might not be first year, the treated sewers were re-treat the section at no cost. a good long-term solution. They were checked by Ty inspection.A substantial In the year since the second project especially concerned about the safety of reduction in the roots mass and a was completed. wssc has experienced the product.Duke's provided them with dramatic reduction in regrowth was just three root related trouble calls out documentation of EPA approval and seen, of 457 sections treated. in each case demonstrated the product—a non-sys- Subsequently,wssr•did a cost analysis Duke's sent the check. and re-treated temic herbicide which,it is claimed,will to compare the chemical treatment to the pipe section. not harm trees themselves orupsebthe routine drag cleaning and found ittobe The Commission now has its own biological balance at the wastewater more economical.The process not only vehicle outfitted with Voporoorer equip- treatment plant. Used as directed, it is reduced maintenance requirements but ment, along with a trained crew to said to he not harmful to personnel,but was found to he the least expensive way supplement the contractor's efforts.The in Maryland,the chemical may only be to maintain sewers over the long-term. wssc crew is treating newly identified applied by licensed pesticide applicator. Overall,the program was felt tobe90to sections and re-treating on two-year During the summer of 1979 a pilot 95 percent effective. cycle. test of approximatch two miles of Convinced that the chemical process With both fewer emergency calls and heavily root-penetrctedpipe was com- worked on their worst sewer problems, fewer plug-ups due to roots.the Sanitary pleted. The worst pipe sections were wssc initiated a program to treat every Commission can adhere to time sched- selccted-.sections which had all been stretch of pipe in Montgomery County ules and ensure more continuity on its on three-month drag cleaning intervals. that was severely affected by roots. At other projects. This has improved the Closed circuit television was used both first we considered doing the entire overall level of maintenance service and to identify stretches of pipe obstructed project internally. but did not want to helped redistribute the workload. In by roots and to provide a base reference make the imestment in equipment,man- Montgomery County, for example, 20 as to the condition of the pipe prior to power,and expertise.WSSCdecided to miles of sewer has been dropped from treatment. use an outside contractor for the intitial the routine drag cleaning schedule, Duke's then proceeded with the appli- application,but to re-treat with its own eliminating up to 1.000 work orders per cation, releasing a chemical foam in crews. _year, predetermined amounts that completely During the summer of 1982, Duke's The bottom line'WSSC has substt� filled the seiner pipe, manhole to man- again treated 107.000 feet of sewer. The tially reduced instances of raw sewage hole. The treatment had the beneficial work took a total of three months. backingup into customers'homes while side effect of contacting roots in home- An added factor that prompted the reducing its long-term costs and im- owners"Y"connections and in house- Commission to invest in the program proving service. ACC 26 AMERICAN CITY 6 COUNTY;August 1983 Vaporooter® cuts costs . . 68 not roots. A SINGLE VAPOROOTER APPLICATION, by either foaming or soaking the line, car, eliminate STOPPAGES caused by roots in sewers, for 2 to 5 years. Pruning roots with mechanical tools speeds their denser regrowth. • During a 3-year period, the crew that CUTS roots may have to return to prune them, repeatedly. • "Rod cleaning accounted for 9% of sewer work injuries and 20% of the lost time, among municipal workers," —NASSCO Statistics American City and County, June 1981 ROOT-FREE sewer lines reduce or eliminate complaints by users. Root filled sewer-lines create constant crises. Stoppages are a continuing source of user dissatisfaction and complaints. VA - OROOTER is the best proven solution of the problems u roots in existing sewers, and the high labor and supervisory costs of mechanically and repeatedly CUTTING roots. VaporooterVI © is a product of AIRRIGATION ENGINEERING COMPANY, INC. P.O. BOX H, CARMEL VALLEY, CALIFORNIA 93924 Phone (408) 659-20W ENDING OF FILE FILE TITLE C5 SINEW Pirri ton E I n�eri n'� 9 C'ompanN iT�e