HomeMy WebLinkAbout360.1NOTES:
1.THE RPBA MUST BE LISTED ON THE LATEST VERSION OF "BACKFLOW ASSEMBLIES APPROVED FOR INSTALLATION IN WASHINGTON STATE",
PUBLISHED BY THE STATE OF WASHINGTON DEPARTMENT OF HEALTH.
2.THE RPBA MUST BE TESTED BY A WASHINGTON STATE CERTIFIED BACKFLOW ASSEMBLY TESTER UPON INSTALLATION AND ANNUALLY
THEREAFTER. ASSEMBLY TO BE MAINTAINED BY PROPERTY OWNER. A COPY OF THE TEST REPORT SHALL BE SENT TO THE CITY OF RENTON
WATER UTILITY CROSS CONNECTION CONTROL SPECIALIST, FAX 425-430-7207, EMAIL BACKFLOW@RENTONWA.GOV.
3.RPBA AND ENCLOSURE SHALL BE LOCATED ON PRIVATE PROPERTY AND AS NEAR AS POSSIBLE TO THE WATER METER.
TO OWNER'S
ELECTRICAL PANEL
24"
MIN
2"
12" MIN
SERVICE
FROM METER
SERVICE
TO BUILDING
REDUCED PRESSURE
BACKFLOW ASSEMBLY
LINE-SIZED WASHINGTON STATE-APPROVED RPBA WITH TWO (2) RESILIENT-SEATED SHUT-OFF VALVES AND
FOUR (4) RESILIENT-SEATED TEST COCKS. RPBA SHALL BE INSTALLED CENTERED IN THE HEATED ENCLOSURE
WITH MINIMUM 3" CLEARANCE IN ALL DIRECTIONS
PIPE AND FITTINGS SIZE AND MATERIALS AS REQUIRED PER UPC REQUIREMENTS
ELECTRICAL OUTLET 120-VOLT OUTDOOR ELECTRICAL OUTLET WITH COVER, INSTALL HEAT TAPE FOR FREEZE PROTECTION
ELECTRICAL CONDUIT RIGID CONDUIT PER ELECTRICAL PERMIT REQUIREMENTS
ENCLOSURE INSULATED ENCLOSURE SIZE TO FIT RPBA, ASSE 1060 CERTIFIED, SAFE-T-COVER OR EQUAL
DRAIN ENCLOSURE DRAIN SIZED IN ACCORDANCE WITH AWWA CROSS CONNECTION CONTROL MANUAL
STANDARDS: ≤1" RPBA = 3" DRAIN, 1 1 2" & 2" RPBA = 4" DRAIN
CONCRETE SLAB CONCRETE SLAB SIZED TO FIT RPBA AND ENCLOSURE PER MANUFACTURER
BOLTS 3/8"X4" ANCHOR BOLTS PER MANUFACTURER
GRAVEL 1 1 4" WASHED GRAVEL
4"
MIN FINISHED
GRADE
A
C
B
D
E
F
G
IPROPERTY LINEA
MATERIALS
B
C
D
E
F
G
H
I
6"
MIN
H
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
3/4" TO 2" RPBA
HEATED ENCLOSURE INSTALLATION
DOMESTIC AND IRRIGATION SERVICES
STD. PLAN - 360.1
6/28/2023