A/C drawing air up sink drain.
Whenever we turn on the A/C, it's just a matter of time before the whole RV STINKS. It appears the A/C is pulling air up the waste pipes connected to the double sink. Under one sink there is a drai...
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I would try wrapping a baggy over the air admittance valve and sealing it off. Then turn the ac on to see if you still get the smell. Just a thought.
