Good Sam Club Open Roads Forum: Tech Issues: Black Tank Valve Replacement
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 > Black Tank Valve Replacement

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Lynnmor

Red Lion

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Joined: 07/16/2011

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Posted: 05/31/20 07:13am Link  |  Quote  |  Print  |  Notify Moderator

Not sure that vegetable oil is a good idea. I made cutting tools for a food processing plant and thought it would be a good idea to coat them with vegetable oil and stack them in a package. When the company went to use them, I got a phone call saying they couldn't pry them apart. The entire stack needed to be boiled.

A big issue with the drain valves is that the poor design has an opening into the rectangular portion where the is when open, and c**p goes in there. Just another cheap, poorly designed RV component.





fourthclassC

MA

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Posted: 05/31/20 08:02am Link  |  Quote  |  Print  |  Notify Moderator

Howdy, I thought I'd share my experience here. I had some leakage by the valve which made taking the cap off unpleasant. I changed the seals. seals only. This did not leak for about a year. Then it started leaking again. Just a little. So I think the blade itself is scored up from sand in the tank at some point. I think that if I change the entire valve (not just the seals) it will stop and last a long while without leakage/seepage.

Gjac

Milford, CT

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Posted: 05/31/20 08:11am Link  |  Quote  |  Print  |  Notify Moderator

I had the same issue with my black tank valve. I added a grease fitting on top of both valves 10 years ago. I only greased the gray valve twice but grease the black valve 5 times in 10 years to keep them operating smoothly. The last thing you want to happen is to pull the T handle out of the plastic threads in the valve because it is so hard to open.

Bill/Diana

Southeastern Pennsylvania

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Posted: 06/01/20 12:19pm Link  |  Quote  |  Print  |  Notify Moderator

obviously this issue is more common than one might believe. Also, seems like lots of solutions tried by many of us. Again, thanks for all the comments.


Bill & Diana

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Harvey51

Alberta

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Posted: 06/08/20 09:59am Link  |  Quote  |  Print  |  Notify Moderator

I had the annoying small leak that made removing the drain cap a messy job.
I followed advice from this forum to put a tablespoon of vegetable oil in the toilet and sink after every tank dump. No more leaks!


2004 E350 Adventurer (Canadian) 20 footer - Alberta, Canada
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