Another venting question
I'm tearing out a mobile home (from the inside) and I see now there was only 2" venting, not 4" like I had at the old place and I'm wondering if I'm OK to just use 2" black vent pipe through the roof, pretty much leaving it like it is already? Or do I need to redo it to a 4" stack?
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to see some of my original magic tricks and trick boxes!