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Old 06-11-2008, 09:05 PM   #1
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Per a previous e-mail, we fixed the leak from our fresh water tank on the threads connecting the pipe to the dump valve.

Now we have another leak, and that is the dump valve itself. It appears to leak a drop every minute or two past the sliding dump valve and down the drain pipe. Before we fixed the other leak, the dump valve worked fine. Now it doesn't quite seal.

My first thought was the dump valve may have got some putty or something in it from the thread fix, but I have cycled it a dozen times or so with water in the tank to try to clean it, and it still leaks.

My question is whether there's a way of adjusting the closing on the dump valve, or a seal that might be failing, and if others have a suggestion for me?
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Old 06-11-2008, 09:05 PM   #2
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Join Date: May 2006
Location: Washington State
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Per a previous e-mail, we fixed the leak from our fresh water tank on the threads connecting the pipe to the dump valve.

Now we have another leak, and that is the dump valve itself. It appears to leak a drop every minute or two past the sliding dump valve and down the drain pipe. Before we fixed the other leak, the dump valve worked fine. Now it doesn't quite seal.

My first thought was the dump valve may have got some putty or something in it from the thread fix, but I have cycled it a dozen times or so with water in the tank to try to clean it, and it still leaks.

My question is whether there's a way of adjusting the closing on the dump valve, or a seal that might be failing, and if others have a suggestion for me?
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Old 06-12-2008, 04:52 AM   #3
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My experience with blade valves is that they are prone to "drips". If mine was leaking, I would add a ball valve in the drain line. You might have to do some crawling to open it, but how often do you dump the fresh tank.

Ken
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Old 06-12-2008, 05:22 AM   #4
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As I remember, the valve in question, is a 3 piece unit, that have 4 bolts attaching the inlet and outlet to the slide body. We don't have one now, as WRV decided that the coaches with smart beds didn't need a large drain on the water tank. These valves come apart easy and new seals can be added. When I have needed seals in the past, I always bought and replaced a new slide assembly and seals together. I lube the seals with silicone grease, not sealer, and am cautious not to over tighten the bolts

Dale
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Old 06-12-2008, 06:07 AM   #5
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I just had fixed a badly leaking dump valve. To dislodge the debris the tank was drained and compressed air was shot up the dump tube. Moved it around enough to have it flush out with the next application of water in the tank. Worth a try. My cable was also kinked and was replaced.
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