Good Sam Club Open Roads Forum: Class A Motorhomes: Black water tank overflow
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Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > Black water tank overflow

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chuckftboy

Fleming Island, Florida

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Posted: 11/17/21 06:21pm Link  |  Quote  |  Print  |  Notify Moderator

Winnebago has always plumbed the 1/2 bath sink into the black tank on the 43 and 45 foot Class A rigs along with both toilets. The grey tank gets connected to the rear sink, kitchen sink and shower.


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4x4van

California

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Posted: 12/08/21 03:28pm Link  |  Quote  |  Print  |  Notify Moderator

JRscooby wrote:

I have another question for the OP;
All my life I have been told water seeks it's own level. And I have never seen a bathroom where the top of toilet is higher than bottom of sink. Even if a pipe tied the 2 together how could water flow into sink from toilet?
If the toilet seal is good (and you don't try to flush) then it could indeed back up into the sink. If that's the case, though, I would highly suggest DO NOT TRY TO FLUSH THE TOILET!!!!


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