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Old 07-05-2012, 10:48 PM   #1
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2007 27' Safari FB SE
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Exclamation Black water dump valve on 27' FB Safari 2007

On a recent camping trip I dumped the black water and flushed the tank and closed the valve but the valve handle stoped about 1/2" before it could be secured by the handle locks. I checked to see if the valve was closed and it appears to be ( no liquid comes out unless you pull the handle all the way out), yet the handle is not all the way in. I was looking how to get to the valve and hence the question. Can I get to it by dropping down the cover pan only or does all the plumbing and tank drop down when the cover bolts are removed?
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Old 07-05-2012, 11:28 PM   #2
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I am pretty sure that the tank and plumbing will not drop if you remove the belly pan.

Having said that, this has happened to us...a wad of toilet paper had become lodged in the shut off valve... Before dropping anything, I would try to flushing the tank vigorously... and perhaps even squirt a hose up there (after it's been drained and rinsed) with it open to see if you can dislodge anything. Cover yourself head to toe and be ready to close it quickly. If you have a Flush King or similar back-wash system it would be easy to do. In our instance it took about 3 completely full black tanks of water to dislode the paper...

Then if that doesn't work, go to more extreme means.
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Old 07-06-2012, 07:00 PM   #3
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Thanks for your input. I have a factory installed "No-Fuss-Flush" system and have always used it, also as you suggested a vigorous flushing from both ends with the same results. I procured a extension mirror so I could look inside and around the corner with a flashlight and there are no obstructions. I suspect the valve gasket has somehow caused the inability to completly close the valve so the handle can be locked securely. It does not leak but I need to fix it so looks like the pan will have to come off, if I can do it. Looks a little tricky where the valve handles and main pipe come out from the pan. When you are retired you have all the time in the world!
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Old 07-07-2012, 09:13 PM   #4
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TBRich had it right!
I droped the pan and the tanks were thinking of droping down too so I jacked them up separately. Took the valve apart and found a small bit of toilet paper wadded that was really stuck in the groove so the valve would not fully close,even though it did not leak. Cleaned out the groove, applied pertloeum jelly liberaly on the seals and reasembled the valve. Also lubed the plunger rod. Now I have a very smooth operating black water valve. Buttoned up the pan and all I need to do now is caulk the living daylights out of all the front axcess slots to the valve plungers and the main dump pipe! Overall it took about 4 hours of laying on your back work. The tp might have disolved over time and more flushing but this made sure.
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Old 07-08-2012, 02:08 AM   #5
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Glad that's solved! Good job!
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Old 07-08-2012, 05:35 AM   #6
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Just wondering.....

Would the wand of a power-washer have gotten to the offending toilet paper?

Bob
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Old 07-08-2012, 12:13 PM   #7
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It would if the wand was flexible. The main 3" dump pipe goes in about a foot then a 90 degree left turn for about another foot to the valve. You might get lucky and keep swiveling the nozzle at the end of the wand . . .
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