A two-inch sprinkler system drain centers over a six-inch cast iron soil pipe anchored to the wall typically with mechanical couplings. A half-inch cold water line connects to a trap primer and trap primer adapter. The assembly includes a six-by-four-inch increaser, a four-inch deep seal P-trap, and a four-inch long sweep cast iron bend. A four-by-two-inch reducer transitions to a two-inch vent alongside a four-inch wye and a cleanout above the ground floor slab.
1 2 3 4 5 6 7 8 1 GROUND FLOOR 2 3 4 5 6 7 8 9 10 11 12 13 1/2" CW NOTES 2" SPRINKLER SYSTEM DRAIN CENTERED OVER 6" C.I. PIPE. ANCHOR TO WALL (TYP.) 6" C.I. SOIL PIPE. TRAP PRIMER. M.G. COUPLING (TYP.). 6" x 4" INCREASER. TRAP PRIMER ADAPTER. 4" DEEP SEAL 'P' TRAP. 4" LONG SWEEP C.I. BEND. 2" VENT. 4" x 2" REDUCER. CLEANOUT. 4" WYE. 9 10 11 12 13
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