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Old 10-08-2007, 05:29 PM   #1
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1989 25' Excella
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Toilet flow woe

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.

Thanx, Bill
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Old 10-08-2007, 06:39 PM   #2
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Quote:
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.

Thanx, Bill
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.

Andy
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Old 10-08-2007, 06:48 PM   #3
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I have the same problem. I have winterized for three years with this problem. Once you blow out the lines and pour anti-freeze into the holding tanks and drain them, it shouldn't matter if your toilet leaks water since you won't be connected to any water. Once you winterize, there is no pressure in the lines. My RV man will fix the toilet when we bring the Argosy home, but for now it's hooked up to a sewer when the water's on and when we turn off the shore water it isn't a problem. I just prop the slide open a little so the bowl doesn't fill with water and camp.
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Old 10-08-2007, 06:51 PM   #4
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1989 25' Excella
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Thanx Andy, the slide seems fine. I am reasonably sure it is the ball valve as the bowl seals shut pretty tight. If I am to replace the ball valve I guess it makes sense to do the slide also?
I mentioned upgrading to a China bowl to the Wife. She did "warm" to the idea...

Bill
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