Thetford toilet leak

[RocketDork]

Ok, I've done the search thing and find nothing that really matches the problem I am having.

The toilet is leaking in my 2000 Winnebago Brave SE. It leaks near the top of the toilet on the back when I flush. The water is clear and clean. The leak continues as long as there is pressure in the system, when I turn off the pump and release the pressure in the water system the leak stops. I can then turn the pump back on, and it holds pressure just fine.

When I flush again, same story. Leak, turn off pump, release pressure, turn on pump, no leak.

Any body have any ideas?

I have a call into the DW for the exact model of the toilet.

[RocketDork]

Ok, I've done the search thing and find nothing that really matches the problem I am having.

The toilet is leaking in my 2000 Winnebago Brave SE. It leaks near the top of the toilet on the back when I flush. The water is clear and clean. The leak continues as long as there is pressure in the system, when I turn off the pump and release the pressure in the water system the leak stops. I can then turn the pump back on, and it holds pressure just fine.

When I flush again, same story. Leak, turn off pump, release pressure, turn on pump, no leak.

Any body have any ideas?

I have a call into the DW for the exact model of the toilet.

[rvcarpenter]

I would guess it's leaking from the valve assembly back there. Mine did that but once it started leaking it leaked any time the pump was on. Had to disconnect the supply line and cap it off until I got a new toliet. If you look under the back of the toliet you can sometimes see the bottom of the plastic valve assemble.
You might take off the supply line and see if there is any foregin matter in the valve inlet, or mabye it's just loose.

[RocketDork]

It was the valve. The Orings appeared to be a bit dried out and tough, not the normal stretchy. I tried to rebuild it by putting new Orings on it, but the gate valve fell off inside. I fought with it trying to get it back into position, and gave up.

I bought a new valve, had it installed in less then 15 minutes and all is well!

[Gary the Wombat]

Mine did the same thing. As it was less than a year old I called Thetford and they sent me a new valve. I had a couple of other problems so I took it to my dealer to have it installed at the same time. It only took them 5 weeks to install it, and they didn't even have the "waiting for the parts" excuse!

When I got my MH back the optional spray hose didn't work. I checked it myself and found the "mechanic" hadn't cut of the barb end leading to the spray hose. Doh! They are so highly trained. Needless to say I'll never go back to that dealer (for other reasons as well).