black water tank smell
About this time last year I purchased a 2011 Puma 38PFSKB. I am still having problems with sewer smell in the black water tank. Let me state what I have done: 1. Replaced the old Thetford toilet w...
Forum Discussion
secretcheese3000 wrote:
Can you tell me more about the air admittance valve? I thought the grey and black tanks were unconnected except for being drained from adjacent valves. But now we have a sudden and mysterious black tank smell after six years of full-timing. How does the black tank smell get into a gray water air admittance valve when the grey valve is left open?
You are correct that the two tanks are not connected. But the gray tank can be just as stinky as the black tank. If you look under your sinks you'll see a T in the drain that goes up to what looks like a cap. That is you air admittance valve, Unscrew the valve and it should only allow air to flow in one direction, down into the tank. If it's faulty or if you're not sure, spend the $7 to replace it.
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