Scotto
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I'd like to add a small bar sink in the basement nearby the
3" cast iron sanitary drain stack that goes to the first floor. The bar sink would be very low volume.
There is a clean-out plug ( 3 1/2" ) right next to the drain stack in the floor. Rather than breaking up the concrete,
I'd like to use a 3 1/2" to 3" adapter treaded into the
clean-out, and a 3" Sch 40 PVC wye with a clean-out plug on top
connected to the adapter. A 2" Sch 40 pipe would connect to
the sink drain, about 2 feet away. Between these would be
a tee with an atmospheric vent valve. I'd basically be raising
the clean-out plug about 12" and adding an ATM vent for the sink. Does this sound reasonable? Any code violations?
Could I use 1 1/2" PVC rather than 2" PVC for the drain pipe?
3" cast iron sanitary drain stack that goes to the first floor. The bar sink would be very low volume.
There is a clean-out plug ( 3 1/2" ) right next to the drain stack in the floor. Rather than breaking up the concrete,
I'd like to use a 3 1/2" to 3" adapter treaded into the
clean-out, and a 3" Sch 40 PVC wye with a clean-out plug on top
connected to the adapter. A 2" Sch 40 pipe would connect to
the sink drain, about 2 feet away. Between these would be
a tee with an atmospheric vent valve. I'd basically be raising
the clean-out plug about 12" and adding an ATM vent for the sink. Does this sound reasonable? Any code violations?
Could I use 1 1/2" PVC rather than 2" PVC for the drain pipe?