Rog
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Bathroom waste pipes and when are air admittance valves needed
Rog replied to Roz's topic in Waste & Sewerage
Hi Everyone, Sorry to bring back an old tread, I have the same bathroom layout and had a question. So in this layout the waste leads to a septic tank, bearing that in mind, could you still install a AAV? Only asking because the positive pressure that may accumulate may render the AAV useless, am i wrong? Appreciate any feedback