Grey tank odor
Our rig is a 2015 Hurricane 31s with the out side sink and refer. We are getting a foul odor in the bedroom after using the shower or putting any larger Amount of water in to the grey tank. The outside sink uses a waterless trap and a macerater pump to pump the water out as it is lower than the shower drain. I discovered that the trap was torn so I replaced it, did not solve the problem. There is a vent to the roof and behind the bedroom wall something that looks like a pressure relief. Not sure how that works so any advice is surely welcomed.
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