A hub drain connects to a sanitary drainage system featuring a trap, a 2-inch vent pipe, and a wall cleanout located above the finish floor. A sprinkler drain pipe discharges into the hub drain with a 1-inch air gap. The water supply line includes a one-half-inch cold water pipe, a shut-off valve, a trap primer with vacuum breaker ports, and a union fitting.
HUB DRAIN TRAP FINISH FLOOR 2" VENT TRAP PRIMER S.O.V. 1/2" CW 1" WALL CLEAN OUT SPRINKLER DRAIN PIPE PROVIDE TRAP, TRAP PRIMER AND VENT. CONNECT TO SEWER VACUUM BREAKER PORTS UNION 1"
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