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06-17-2011, 05:53 PM
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#1
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Montana Fan
Join Date: Aug 2008
Location: Lone Grove
Posts: 147
M.O.C. #8718
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Black Tank won't drain
My black tank will not drain. I open the valve and can hear water running but will not fill the sewer hose. Any ideas?
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06-17-2011, 05:55 PM
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#2
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Montana Master
Join Date: Sep 2003
Location: Sunshine
Posts: 1,445
M.O.C. #538
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Get a clear plastic fitting so you can really see what's going on. JMHO
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06-17-2011, 06:13 PM
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#3
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Montana Master
Join Date: Sep 2006
Location: Casa Grande
Posts: 5,369
M.O.C. #6333
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Make sure your other two tanks are closed, I would then depress the toilet flusher in the trailer, then send a small plumbers snake up the drain, however, watch out below......Possibly the rod that connects to the valve has come off. You may have to drop part of the belly to check it out......
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06-17-2011, 09:41 PM
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#4
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Montana Master
Join Date: Apr 2009
Location: Murrieta
Posts: 5,816
M.O.C. #9257
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Wow Phil that's a scary recommendation. if he pokes upwards with a plumbers snake I can't imagine the mess of the effluent coming down in a full tank. I think if it is the valve, remove the undercovering to get to the valve and see if there's some way to get it slid open.
If the valve is open but there is a bolckage and if I was going to use a snake I would buy an extra down spout sewer fitting and knock out the plug where there is a hose bib (look at this example):
http://www.pplmotorhomes.com/cat/898/250/898442.jpg
Note the hose bib. Then I would connect a hose to the fitting and hold the hose up higher than the black tank by a few feet, then use the snake all the way down the hose and up the drain hose to the black tank (good luck getting it finding a way to get it there). Then if you unplug the blockage and the effluent comes rushing down and you hold the hose up high hopefully the down rush will go into the sewer drain and not all the way up the hose. That's why the hose has to be up in the air as high as you can hold it (you will probably need a helper).
Otherwise it's Rid-X, or some other ways to dissolve the clog or a call to a professional plumber if that still doesn't work.
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06-18-2011, 01:13 AM
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#5
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Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
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Have you watched RV the movie? Haha! We have a clear plastic connector with garden hose connector that goe between sewer drain and s/hose. It allows for water at high pressure to be sprayed into sewer tank....if valve is opening.....successfully washing out any residue, which you can watch through the clear. Available at any camping supply. You probably already know this but just in case, after you restore system, never leave black water valve in open position as solids will stay liquids will go. Only open when needed so things stay in simi liquid state causing flow when valve is open.
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06-18-2011, 02:50 AM
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#6
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Montana Fan
Join Date: Aug 2008
Location: Lone Grove
Posts: 147
M.O.C. #8718
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Put my clear attachment on this morning. Getting some drainage so apparently the valve is opening. Will try the high pressure thing later on. Thanks for the input.
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06-18-2011, 05:05 AM
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#7
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Montana Master
Join Date: Sep 2006
Location: Casa Grande
Posts: 5,369
M.O.C. #6333
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Wow Phil that's a scary recommendation. if he pokes upwards with a plumbers snake I can't imagine the mess of the effluent coming down in a full tank. I think if it is the valve, remove the undercovering to get to the valve and see if there's some way to get it slid open.
Art, Hence the instruction to "LOOK OUT BELOW". After all, IT IS HIS EFFLUENT!!!!
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06-19-2011, 02:28 AM
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#8
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Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
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Quote:
quote:Originally posted by maphillips
Put my clear attachment on this morning. Getting some drainage so apparently the valve is opening. Will try the high pressure thing later on. Thanks for the input.
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Look at Ozz's post on Earnhart's nicknames. In one of his photos is connector of which we speak.
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06-19-2011, 06:43 AM
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#9
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New Member
Join Date: Apr 2011
Location: chestermere
Posts: 5
M.O.C. #11377
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I had the same problem last year.Camping with the kids and to much toilet paper in the black tank and it plugged.
I just used a back-flusher and sure enough 2 mins later a huge wod of paper came flushing out.
Give the back flusher a try and hopefully that will work for you.
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