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Old 10-20-2019, 05:59 PM   #1
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Rev 24RB- Black Tank Valve Not Closing 100%

2016 Rev 24RB- great RV!

Since purchase- black tank valve does not shut all the way, getting worse, now very hard to push and pull. Watched lots of Youtube on greasing options and replacing- but the black and grey valves for 24RB are in the same box, not separate. We practice the GEO black tank cleaning method.

Options to lube or clear?

What part is necessary if we choose to replace the valves? Is a scematic available?

Thanks!
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Old 10-20-2019, 09:56 PM   #2
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2016 Rev 24RB- great RV!

Since purchase- black tank valve does not shut all the way, getting worse, now very hard to push and pull. Watched lots of Youtube on greasing options and replacing- but the black and grey valves for 24RB are in the same box, not separate. We practice the GEO black tank cleaning method.

Options to lube or clear?

What part is necessary if we choose to replace the valves? Is a scematic available?

Thanks!
Can you do away with the cable system and install electric valves?
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Old 10-21-2019, 11:17 AM   #3
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Hi Bill- thanks for the recomendation. I am not familiar with electric valve options. Could you list a few products to check out?
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Old 10-21-2019, 11:51 AM   #4
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Hi Bill- thanks for the recomendation. I am not familiar with electric valve options. Could you list a few products to check out?
Iím not familiar with them as an aftermarket purchase. My last diesel pusher had them and I was happy with the way they performed. Perhaps someone on the forum has installed them?
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Old 10-21-2019, 11:55 AM   #5
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Valterra makes them. I just saw them on E Trailer. They have a live chat that my help you.
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Old 10-21-2019, 05:02 PM   #6
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Will do- Thanks again Bill!
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Old 10-21-2019, 08:07 PM   #7
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changed my black water valve on my 2015 REV- not too hard. Now the gray water is real hard to open and close so I guess I'll order another one . But I might have to think hard on these electric valves first ?
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Old 10-21-2019, 08:46 PM   #8
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Barker valves make one too. And they sell them on Amazon it appears.

https://www.amazon.com/Barker-24130-.../dp/B003VAYMB4

https://www.barkermfg.com/auto-drains.html
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Old 10-22-2019, 10:07 AM   #9
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Thanks Brian-
Can you let me know the part to simply replace the current black/grey valve pulls? They are individual pulls located in the same box so it appears the replacement is a single unit.
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Old 10-22-2019, 10:30 AM   #10
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go to Amazon type " RV valve " and this will work - LaSalle Bristol 66N4AB48BM 3" x 48" Term Valve $47.91 ( and you have 2 of these )
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Old 10-22-2019, 10:45 AM   #11
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Thanks Brian-
Can you let me know the part to simply replace the current black/grey valve pulls? They are individual pulls located in the same box so it appears the replacement is a single unit.
I'm not exactly sure what you mean, but I would recommend taking this to a dealer for replacement. If you're just looking to replace "like for like", it is multiple parts. There is a 3" valve and a 1.5" valve. A service only dealer might actually be able to adjust them without replacing them..it could just be the way the able is routed or got moved...or debris???
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Old 10-22-2019, 03:46 PM   #12
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It could be debris caught in the shutoff valve that is blocking it from closing properly.

Shortly after I picked up my new 5th wheel trailer, one of my gray tanks wouldn't seal very well as it dripped gray water into my discharge line. Then, while hooked up to a campground for several weeks, I found a large flexible plastic strip at the connection to my outside discharge line. The plastic apparently worked its way from the valve to the outside connection and got hung up on the coupling to my discharge hose. The valve no longer leaked for a short while. When the problem returned, I took my trailer back to the dealer and they replaced the valve and found more plastic in the tank. They replaced the valve since it was shutting on the plastic and deformed the gasket. I've had no problems since.
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Old 10-22-2019, 03:49 PM   #13
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TGR- our situation may be similar.
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Old 10-22-2019, 05:01 PM   #14
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Blackwater valve

You have toilet paper stuck in the valve try flushing tank but may need to take the valve out but I will tell you it is a real pain to get it out they put them together before they install it
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Old 10-22-2019, 11:04 PM   #15
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try to make sure before you buy anything that it will clear the body work.

I bought a Valtera T-58 valve but it wonít get past the rear ďquarter panel.Ē It would require making the sewer discharge pipe end lower which would cause clearance issues.

I like the idea of the electric valves but make sure they will fit properly.
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Old 10-23-2019, 08:40 AM   #16
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Try lubricanting the valves

I did this and it really helped, assuming you can get to them.

https://youtu.be/2GDErKY05-8
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