Quote:
Originally Posted by FW28z
I had to look it up myself... supposedly cheater vents are only intended for the RV industry, but they are finding them in some houses - which is apparently not up to code.
Plumbing Check Vent | Mobile Home Repair
Apparently the consensus is they really don't work. |
Known as aav, air admittance vent/valve. They're big in europe. A lot of state local plumbing codes don't allow them at all or are restrictive about their use, rv use is ok. They work, however they do fail. Roof vents can leak, clog ect.
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