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Old 05-10-2013, 10:42 AM   #1
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Join Date: Feb 2013
Location: Erie, CO
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Holding tank drain valves

I bought 2004 GS last year and found out tank valves that won't seal closed. I always get drainage when I uncap the system. I've asked my service guy to replace the valves but he's hesitant to do that since he can't find specific drawings to show location and direction on the system. Has anyone done this or had it done? I've tried to flush and flush but if there's tp or other debris in the system it won't all come out. I always get something out of the black tank after several dozen flushings. I think the previous owners used regular tp One suggestion was to attach a Flush King adaptor and leave it so that I don't get a face full when I take the cap off for hookup.



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Old 05-18-2013, 06:29 PM   #2
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I'm certainly no expert but if your valve is easy to get to this video should shed a whole lot of light on how to repair/replace your valve. You can get o-rings to replace the seal or slap a whole new valve on for relatively little $$.

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Old 05-18-2013, 10:06 PM   #3
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Originally Posted by David Providence View Post
... One suggestion was to attach a Flush King adaptor and leave it so that I don't get a face full when I take the cap off for hookup. ...
I bought a Flush King to clear the blocked outlet of the BW tank (and it works great) and thought about leaving it in place when travelling, but the product packaging has a warning to remove it after cleaning the tank, and states it is NOT a permanent fitting.

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