A sanitary sewer drainage piping network connects four-inch floor drains and floor sinks into a central vertical stack. Two-inch vent lines extend upward from each fixture branch. Floor cleanouts are installed along the sanitary drainage lines for system maintenance.
SS SS TD-1 4" TD-1 4" TD-1 4" TD-1 4" FS-1 4" FS-1 4" FCO FCO SS SS 4" 4" 4" 2" VENT UP 2" VENT UP 2" VENT UP 2" VENT UP 2" VENT UP 2" VENT UP
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