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plumbing venting in a wofati

 
pollinator
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Location: Hardiness Zone 5
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Was curious how/if the venting for the plumbing systems in the Wofatis were handeled.
Seems like an invitation for a leak !!! as most venting is throught the roof to the oustide.



 
pollinator
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Sealing glands can be used or created.
 
pollinator
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I don't live in a wofati, but I did install an air admittance valve in my cob house. Should work well in this situation to limit the necessity for poking holes in water proof membranes.

31TmpUb-NvL._AC_PIbundle-3-TopRight-0-0_SH20_.jpg
air admittance valve
air admittance valve
 
John C Daley
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`I have never seen a valve like that. What is the primary use of them, and where would thry be used?
 
pollinator
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They are used to update old plumbing or adding a fixture somewhere you can't put a vent.  

You can put the vent out the front wall and elbow up just like the chimney.  My old neighbor, a high end contractor and licenced plumber, did that for his pahs underground house.
 
Daniel Ray
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Mine is simply tucked under the counter in my bathroom. It is a little far away from the tub so I still get a bit of gurgling when that drains, but works well for the bathroom and kitchen sinks. I really was not wanting to run a vent pipe up through my cob wall or have it run adjacent and be visible so I did some research and found these little beauties. Just a one way valve that lets the air in but no stink in.
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