Originally Posted by BillTex
I'll try this again as my question did not really get addressed on another post;
This weekend the toilet would not stop running.
I cleaned the groove for shutoff valve, and it appeared to be closing all the way, but water just kept flowing.
Foot pedals were not stuck, springs were still attached and operating.
I cycled pedal repeatadly in an attemp to get any stuck valves to close but no luck.
We got around it by turning off the water pump, but it sure was a PIA.
Anyone know the problem and cure for this?
Is it the ball valve?
The rest of the Thetford is fine, just cannot get the water to stop flowing...
It occured to me that I cannot winterize until I fix this as any antifreeze/air pressure put in the lines will default to the toilet.
You toilet is 18 years old. Things happen. The ball valve and/or the slde valve mechanism, in part, has gone south.
You can replace the entire "slide valve mechanism" or replace the ball valve.
The slide mechanism, would probably last another 18 years or more.
If you change out the ball valve only, what will go next? There are several other things that could go, like the slide valve itself.
If you piece meal the repairs, that will be the end result. If you replace the slide vavle mechanism, you have replaced everything except the toilet body and seat.
The slide valve mechanism costs about one half the price of the complete toilet.
To order that part, from someone that understand your toilets problem, you would need to provide the exact Thetford model number.