I don’t believe it’s acceptable to tie the A/C, HRV, and water purifier drains directly into the stack. Is it?
Nope!
With proper fittings it’s allowed, but this is simply a “hack-job.”
Ditto
Do you mean “a primed P-trap with proper venting”?
I don’t believe it’s acceptable to tie the A/C, HRV, and water purifier drains directly into the stack. Is it?
Nope!
With proper fittings it’s allowed, but this is simply a “hack-job.”
Ditto
Do you mean “a primed P-trap with proper venting”?