Toilet fills until it overflows--FIXED

[steelpony5555]

The valve and flushing mechanism is actually pretty simple. I mean you got the valve, the spring pack and it's held in by 2 screws. I kinda doubt water pressure plays much of a part in leaking past the valve, at least on the Sealand toilets. Reason #1 would be the where the valve plunger rides on the inside of the pedal which actually is what operates the flush is all gunked up and sticky. #2 is the 2 screws are too tight and are binding up the whole works. and #3 is the spring pack got sprung where the spring came out of the groove like mine and Rich's did. I imagine the ball valve inside the bowl could get stuck and keep the water running, but that would be pretty obvious since the bowl would not hold water. Once you open up the side of the pedal and get into the mechanism it is really obvious how it works. If high water pressure is still leaking by then I would say the valve itself is bad. I'm no toilet guru lol lol I just tore mine a part before. Although I have worshiped the porcelain god in my younger days....lol lol

[steelpony5555]

Yah....glad you got it..see not that hard once you open it up,,, usually if it's the spring pack it is because the spring comes out of it's groove which is easy to see. From what the RV tech told me it happens enough that they usually keep a couple on hand. But the valve is not hard to replace either.. I now usually when putzing around maybe once a year pull the cover off and wipe it out the best I can and give it a spray of silicone.

[jackel1959]

Glad you two got it fixed......nothing worse than a wet surprise......especially one like that

Jack

[paulinbaja]

I ALWAYS have some sort of filter on my incoming water. Usually the cheap blue filters that are available at camping stores and even at Wal-Mart. This keeps the sand and calcium residue build up in the CG water systems from scaring the seats of the valves or from catching in the valves and preventing closure.
I am surprised at how many of you are going away from Thetford. I've been using Thetford for many years with great respect. Currently have a porcelain unit (don't know the brand) with the "ball" type valve and don't like it. Seems to work ok, but material seems to stick to the ball and seals.

[K0LCB]

Paulinbaja, I found that a few drops of Dawn dish soap on the ball helps keep it clean and working

[steelpony5555]

Dawn is good for a weekly treatment, just a lil squirt will do ya. Usually once a year I use some kind of cleaner to scrub the ball and use a tooth brush to clean the rubber seal. After cleaning I'll put some Vaseline on it. My bowl will hold water for weeks.