installing a wet bar with a sink .using 2inch drain how far away from the main vent stack can it be before tying into the main vent ? and what size vent pipe should i use .and do i tie it in with a 45 or 90. thanks 4 any help
HiCustomerbr />The max distance the trap on a 2" drain can be from the vent stack is 6'. A 1 1/2" vent should be more than adequate unless your wet bar has more than 4 bar sinks. Vent fittings can be short radius so you can use a 90 or a 45. Only drain lines must have long radius fittings for direction changes unless the change in flow direction of the drain is from horizontal to vertical
Licensed Construction Supervisor 35+ years experience
thanks for your fast reply. but i was wrong about the drain size .it turns out the pipe size is 1 1/2 " is it still ok to use the 1 1/2" vent size? the vent stack is 9 feet awayfrom the drain trap
Sorry it took so long to get back to you. I was taking a break. Yes you can still use an 1 1/2" vent. And since the trap is 9' away you can use an 1 1/2" drain as well but you will need to cut in a vent TEE (branch looking up) within 5' of the stack and run an 1 1/2 back vent back to the stack from this TEE.