Hi:
I am changing my 2nd story tub from a LH to RH drain, so you don't have climb in between the toilet and the tub to turn on the shower. Originally all the plumbing was along one wall with lav, toilet and tub in a row. When I opened the walls, I was expecting to see vent stacks for all 3 fixtures, as shown below, but there is only the one behind the toilet. The distance from the tub drain to the stack is 3 feet in the current configuration. Tub drain is 1 1/2" PVC. If I move the tub...
Do I need a separate vent?
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