Osma wavin AAV how do they work and how much is a new one
Hi,
I have an Osma Wavin AAV in my bathroom, was getting nasty wiffs from
the stack. Decided to examine the AAV found that it doesn't seem to have
a diaphragm, how do they work?
If I need a new one how much should I pay, rather than the list price
shown at Plumb Center.
Thanks
James
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