Plumbing · M-PCWCS

Sprinkler Test and Drain Receptor Plumbing Detail

Materials

Elements

Floors / Slabs Drainage Connections / Plates

About this detail

An 8-inch standpipe terminates above the finished floor with a galvanized 90 percent free area wire mesh basket and a no-hub coupling, transitioning down through a reducer. The assembly requires a minimum height of 3 feet to 4 feet 6 inches for the backflow preventer drain, with pipe sleeves and sealant provided at all floor penetrations. A trap primer connection feeds into the P-trap, and a 3-inch vent ties into the vent system. The waste line continues with a downward slope toward the sanitary sewer system, supported securely to the structure.

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