Good Sam Club Open Roads Forum: Black Water Valve Will Not Close
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 > Black Water Valve Will Not Close

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Cummins12V98

on the road

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Joined: 06/03/2012

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Posted: 11/11/21 12:14pm Link  |  Quote  |  Print  |  Notify Moderator

wnjj wrote:

Put one of these on and get through the winter: https://www.amazon.com/Valterra-T58-Twis........t+on+rv+dump+valve&qid=1636654797&sr=8-3


I used one of those to temporarily fix my stuck open POS black tank flex cable valve. Once I returned to my home base I dumped the cable valve and use the guts of the temp valve to fix the POS valve and make it a manual valve.


2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

naturist

Lynchburg, VA

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Posted: 11/11/21 02:47pm Link  |  Quote  |  Print  |  Notify Moderator

About 5 years after buying our TT, I found myself unable to close the black tank valve. Fortunately, it is only a foot or so up a straight pipe from the coupling, so after flushing the tank as thoroughly as I could, I put a cable grabber up there to see if I could get any debris out. Turns out that when they built the trailer and cut the hole in the tank for the drain, they just left the cut out IN the tank. I was able to grab it and drag it out, and the valve closed normally. You may find a similar "objet de art" stuck in your valve.





pmlevine

Massachusetts

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Posted: 11/15/21 09:03am Link  |  Quote  |  Print  |  Notify Moderator

Thanks everyone for your suggestions. I just installed a temporary (?) valve per member feedback (WNJJ thanks) :
https://www.amazon.com/Valterra-T58-Twist-On-Waste-Valve/dp/B000BGHYJS/ref=sr_1_3?keywords=twist+on+rv+dump+valve&qid=1636654797&sr=8-3

So far so good. Is this add-on valve “street legal”, or will I have repair or replace the original black water valve ?

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