An eight-inch class 160 or schedule 40 PVC pipe mainline connects to a gate valve via schedule 40 PVC male adapters. The assembly sits atop a six-inch bed of three-quarter-inch drainrock and is surrounded by pea gravel and brick supports. A round plastic valve box with a bolt-down lid is placed over the valve, extending upward to finish grade with specific clearances for planter and sod areas.
3/4" DRAINROCK SCHEDULE 40 PVC MALE ADAPTER PVC MAINLINE 8" CLASS 160 OR SCHEDULE 40 PVC PIPE (NOTCH TO FIT OVER MAIN LINE PIPE) GATE VALVE BRICK (2 TOTAL) PEA GRAVEL FINISH GRADE ROUND PLASTIC VALVE BOX WITH BOLT DOWN LID - TOP DIMENSION 10" WITH NON-POTABLE MARKINGS TOP OF VALVE BOX 1/2" ABOVE PLANTER AREA FINISHED GRADE AND 1-1/2" ABOVE SOD FINISHED GRADE NOTES: 1. HEAT BRAND LID W/GV. TYPICAL ON ALL BOXES. 2. GATE VALVE AND FITTINGS SHALL BE LINE SIZE UNLESS NOTED OTHERWISE. 3. PLACE 3/4" DIA. ROCK PRIOR TO INSTALLATION OF VALVE BOX. 4. USE TEFLON TAPE ON ALL THREADED FITTINGS. 18" 4" 6" 10" ROUND VALVE BOX PER MULCH PER SPECIFICATIONS LANDSCAPE FILTER FABRIC 3/4" DIAMETER GRAVEL SUMP
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