[rotaxman]

Hey Glenn

In our 06 and also this junk 09 if you don't use the washer for a period of time the water in the p trap will evaporate. We pour a cup full of water down the washer drain and it takes care of the problem for us.

I know in these two trailers that when you turned on the exhaust fan or fans that it would pull foul odors up through the drain pipe of the washer.

I don't know if that's whats happening with yours or not but it might be the problem. Just a thought. I hope that is what the problem is as it is an easy fix. The underbelly is another thing.

As always good camping
Joyce and Jerry