Odor After New RV Toilet Installation

[Rene T]

But the gray tanks at times can smell worse than a black tank

 

[Kirk]

Don’t think the black tank has a valve like the grey tanks have

It does not, but just as Rene T suggested, the odor from the gray tank, via that air admittance valve can be as bad or worse than from the toilet and many an RV owner has fought what you believe that you have, only to eventually discover the real problem was that valve failing.

Pretty sure the 2 black vents on the roof handle the ventilation.

The two vents on the roof are one for the black tank and the other is for the gray tank. The air admittance valve is not there to ventilate the tank but to act as a vaccume breaker between the sink and the drain plumbing for proper sink draining. There is one under each sink, including the kitchen. The RV toilet doesn't have or need one.

 

[Bearcatrp]

The only time the smell got bad was after I flushed the new toilet. Never using the sinks. Plus, the front storage compartment the smell was worst than inside the camper.

 

[Bearcatrp]

Got it back today. Got lucky. Didn't need to cut open the wall to get access to the pipe. Was able to do it from the roof by cutting open the hole where the pipe vent comes out on the roof. Talked to the guy who repaired it. Said the Keystone did not align the hole with the pipe properly. The pipe was at a angle, enough to work itself loose from bouncing around going down the road. It is now aligned like its supposed to. A little over $600 for the repair job. Was sweating it as if he had to open up the wall, my bill would have probably been 2 or 3 times more. Ready for my camping trip at the end of the month.

 

[SargeW]

The way that the Tiffin factory service center used to search for leaks they had a smoke machine, kind of like the ones that you might use at a party or event. A small box the size of a toaster. For plumbing stuff they would empty the tanks, then blow the smoke up the sewer pipe. If the smoke came out anyplace but the top, there was a problem.

They used it on my coach to find where exhaust fumes were entering in the rear engine compartment. Worked like a champ.