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Old 06-04-2016, 10:13 AM   #1
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Plunger damage to black tank/toilet

I posted this in the General Tech forum, but thought I'd post it here as well. Our is a 2016 XLR 29HFS.

Can using a plunger on an RV toilet cause major damage to the toilet and black tank? Long story short, SO used RV toilet for the first time, and I didn't think to tell him about adding water to the bowl before & after flush, and it clogged. We cleared it by sticking a piece of old hose down toilet, and it started flushing properly again. Next morning, it clogged again - possibly didn't get it all the day before. Tried a piece of hose down the toilet again, but didn't work that time.

SO found a plunger, used it, and it cleared the clog - but problems after. The toilet no longer held a bit of water in the bowl. I figured the "flapper" seal was damaged and didn't want gases coming back into the RV, so I went outside to dump. We had full hook up, but had kept the black tank valve closed and the gray tank valves open (planned to close them that morning before showering since we'd be unhooking in the evening, to let them fill up and use them as a flush after BT dump). When I went out to dump the BT after realizing the toilet wouldn't hold water, I saw that "water" was leaking around the black tank valve - more specifically by what looked like where the pipe came out of the BT into the dump pipes, and also along the gray spray foam insulation in the same general area.

How bad did we mess things up??? Could we have totally blown seals on the black tank?? Or maybe just fittings where it goes into the dump pipes? We've since read that plungers should never be used in an RV toilet unless the black tank valve is open - is this true? We're newbies to RVing, so any advice, suggestions, etc. are greatly welcomed!
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Old 06-04-2016, 06:31 PM   #2
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well this is a new one for me . not sure why you needed a plunger in the first place since it's all gravity into the tank . but i can't see that using a plunger could cause this problem since the black tank is vented . sounds like you have a leak arounf where the pipe comes out of the black tank . only way to know is expose and see then maybe sealant or abs cement . if the toilet will not hold water then yes it's the seal around the ball you masy have damaged it or rolled it out of place .
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Old 06-04-2016, 06:47 PM   #3
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A plunger will not work to do anything for an RV toilet. May have damaged the bowl seals a replacement may be required. Try a flush wand like.......
Camco Mfg. Rv Tank Rinser 40094 - Walmart.com
To use for a clog.

When flushing plenty of water is your best friend.



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Old 06-05-2016, 11:21 AM   #4
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are you by chance leaving your black tank valve open . cause that's what it sounds like. the only way to clog your BT is to leave the valve open causing waste to build up . then you could have issues with toilet not working as it would be sitting on top a pile of waste
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Old 06-05-2016, 12:55 PM   #5
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Quote:
Originally Posted by northstar1960 View Post
are you by chance leaving your black tank valve open . cause that's what it sounds like. the only way to clog your BT is to leave the valve open causing waste to build up . then you could have issues with toilet not working as it would be sitting on top a pile of waste
Quote:
......We had full hook up, but had kept the black tank valve closed.....
I think this was covered.
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Old 06-05-2016, 01:08 PM   #6
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A plunger will not do anything for an RV toilet. It's all gravity and no "suction/vaccum" will be created, due to the tank vents, to make a plunger work.

When plunging did you have the flapper open or closed (flushing vs non flushing position)? If you had it in the non flushing position chances are you damaged the seals and replacement/repair is in order.
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Old 06-05-2016, 01:09 PM   #7
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Originally Posted by Evereddie View Post
I think this was covered.
\
I can read . the description in the OP's post does not leave me to believe they had it closed . why would the toilet clog ? gravity drop into tank .
why add water there should all ready be water in the bowl . . why when using a hose did it clear and then clog again . seems to be build up in the tank and the most likely culprit is leaving the BT valve open .unless the OP has a leak in the tank which was said did not happen until plunger use

Soi say again sounds like the OP left the BT valve open
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Old 06-05-2016, 01:39 PM   #8
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On this particular camper the toilet does NOT drop directly into the tank. There is a slanted pipe from the toilet to the tank. That pipe gets clogged if enough water is not used.
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Old 06-05-2016, 01:55 PM   #9
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On this particular camper the toilet does NOT drop directly into the tank. There is a slanted pipe from the toilet to the tank. That pipe gets clogged if enough water is not used.
I think you are mistaken . the xlr 29 hfs the toilet drops directly into the tank . so unless they plumb them all in different which with FR can be true it dumps right into the tank . now the other thing that could be happening is a hole piece they cut out for the Toilet or drain could still be in the tank [Not un common with FR or other manufactures to do this ] it could be blocdking solids from coming out when they dump and only allowing liquids so over time they have built up solids . Also the 29 hsf has a BT flush so is this being used every time they dump . are they maybe leaving the valve open thinking it's grey instead of the Bt . you never know .
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Old 06-05-2016, 02:53 PM   #10
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It could still develop a "pile" in the tank if enough water is not used for flushing and the tank does not have much water in it, even with the tank valve closed.

This is a crappy subject....... sorry couldn't resist....

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