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Old 05-01-2015, 07:39 AM   #1
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Black Tank Flush

Hello Any advice will be appreciated. We have a Forrester 3011 MH and the black tank flush is not working. We connect the water hose, turn water on and nothing. Any quick fix so that we don't have to take it to the shop.
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Old 05-01-2015, 07:43 AM   #2
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Have you had any problems with it in the past?
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Old 05-01-2015, 08:20 AM   #3
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It has never worked. Forgot to mention it when we have taken it back to the dealer twice We have just used the wand each time, but would be nice to use the outlet. We screw the water hose to it open the black tank valve and turn the water on and nothing. Figure it might be clogged? Hoping there might be an easy fix before we take it in.
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Old 05-08-2015, 10:39 AM   #4
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It's most likely the check valve is installed backwards, the problem is to find it. It's normally about 2 feet above the floor in a cabinet somewhere close to the toilet. Looks like this.
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Old 05-08-2015, 10:46 AM   #5
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Once I found ours (under the bathroom sink), and it started seeping water, I just took it out and hooked the hose from the back of the hose connector brass back flow preventer directly to the hose going into the tank.
Eliminated about 8'-10' of hose too. Still trying to figure out why 2 backflow preventers are necessary.
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Old 05-08-2015, 10:47 AM   #6
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Sorry to hijack, but is it normal for the check valve to make a lot of noise (I think I know the answer but want to be sure). Our flush stopped working as well but the check valve is clicking like crazy...
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Old 05-08-2015, 10:50 AM   #7
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Quote:
Originally Posted by klarowe View Post
Sorry to hijack, but is it normal for the check valve to make a lot of noise (I think I know the answer but want to be sure). Our flush stopped working as well but the check valve is clicking like crazy...
Mine just kinda whines.
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Old 05-08-2015, 11:24 AM   #8
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Quote:
Originally Posted by Frank & Eve View Post
Hello Any advice will be appreciated. We have a Forrester 3011 MH and the black tank flush is not working. We connect the water hose, turn water on and nothing. Any quick fix so that we don't have to take it to the shop.
Follow the water line - mine was zip ties closed at 180 degrees under the trailer.
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