delsandi

We have a Winnebago 2008 Adventurer and we are having a problem with grey water smell in the kitchen and bathroom. We have replaced the self venting caps under both sinks, checked the vent on the roof for blockage...checked as many fittings as I can find and there are no leaks. I am not wanting to mask the smell...I want to find out why this is happening. We have had many RV's and never had this problem. Suggestions?