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I have a 84 winnie chieftain. When we are in transit, there is a foul odor which appears to come from the rear bath area. This is not improved by putting deodorizer tablets in the sewer tank. It doesnt occur when parked. I have checked the vent on the roof and it does not appear to be blocked. Do I need to do something different? Is this a common problem? I tried to keep a small quantity of water in the toilet but there must be a slow leak in the valve because the water is only kept for a few minutes in the top before it disappears through the valve (dump valve) below. Any ideas?? |