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Old 02-15-2016, 11:52 AM   #1
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Black tank flush leaking in bathroom

I have a friend with a CC and I showed
him the black water flush system.
He hooked up his hose to the flush
and started to clean it out. The
wife came out and said there was water
coming out under the sink in the bathroom.

Any ideas why?
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Old 02-15-2016, 12:00 PM   #2
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There is probably a black flush anti siphon valve located there and it is leaking. Pretty common problem...
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Old 02-15-2016, 12:16 PM   #3
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When I used mine for the first time, there was water squirting out under the bathroom sink and in the basement area. It was due to all the fittings being loose. Tightened them all up and no more leaks. Should have been done at the factory.
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Old 02-18-2016, 12:28 PM   #4
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Black tank flush leaking

Since we bought our new 2016 Heartland Elkridge 5er, first time I used the blank tank flush it started leaking a lot of water right above in the compartment. Anyone know how to fix this because I'm not able to take it in. Also, our rear black tank flush is plumbed wrong, it comes out of one of our rear grey tanks. So frustrating on a brand new rig. Help!
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Old 02-18-2016, 12:48 PM   #5
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Peytonlover 18 ... like mentioned, you most likely have the infamous black tank flush siphon valve issue. Find the valve which is usually under the bathroom sink or in the wall behind the shower. Check fittings or just remove the siphon valve, connect the two lines back together, and use an antisiphon valve made for garden hose connections on the end of the flush connection on your unit. As for the issue in the rear of having the wrong tank with the sprayer inside ... unless you're really handy at plumbing and knowlegable of dropping the belly pan and working inside the frame ... I'd have it fixed under warranty. Are you sure the tank valves are not just mislabled?
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Old 02-18-2016, 12:54 PM   #6
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Actually I just went out to check it and found a spot on the tubing where looks like a screw (that is near it) scraped it and causing it to leak! So, now what? Can I repair it?
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Old 02-18-2016, 07:01 PM   #7
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Go to Lowes, Home Depot, or Menards and get a 1/2" Sharkbite union (or similar push loc brand) cut the hose square removing least amount of tubing posible and re-connect.
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Old 02-18-2016, 07:14 PM   #8
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Oh that makes me nervous, is it difficult to do?
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Old 02-18-2016, 07:18 PM   #9
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Not at all. You can do it!
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Old 02-18-2016, 07:20 PM   #10
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Assuming the water line is plastic (PEX) and is accessible, it's easy as slicing pie. Buy the coupler, cut the tube as square as possible removing as little as possible with a boxing knife or buy one of the little tube cutters made for plastic line (they look like pliers with a razor blade in one jaw), push the tube back in to both ends of the coupler, you're done.
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