On the last two trips using our 2002 37u southwind i noticed a fowl odor coming from the closet right above the washer/dryer combo, nothing from inside the washer itself. I did notice that it only hap...
My guess is that your trap is dry. Put a quart of water down the drain to refill the trap. If there is no water in the trap, the tank gasses can come right on through. Living in the dry climate of Arizona, our traps will dry out in a couple of months. I frequently pour some water down them to keep them full.