Quote:
Originally Posted by dstankov
Not sure how your Challenger is plumbed but on my 37ND the kitchen and bathroom sinks have the air admittance valves and both sinks drain into the forward grey tank. The vent pipe for the forward grey tank is connected to the vent pipe coming off of the black tank (grey vent pipe is 45'd in about 42 inches above the tank and 39 inches below the roof). It looks like the vent pipe is T'd into the bathroom sink drain right at the tank.
Based on this if I started noticing a smell from the bathroom sink area I would check the bathroom sink air admittance valve first and then the rooftop vent.
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We were instructed to check these valves as well if we start smelling a odor.
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