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Old 09-17-2021, 04:32 AM   #1
Pocketlake1
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Pull handles for the waste tanks sticking

The pullout handles for the 3 waste tanks are getting tough to pull out. Sprayed silicone on the visable rods but it has helped only slightly. Concerned something is going to break eventually. Can anyone advise of how the drains and associated mechanisms can be serviced? Iím hoping it does not involve removing the covering on the bottom of the rig but i will do whatever is necessary. Thanks for any insight. Ken
 
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Old 09-17-2021, 03:10 PM   #2
jcurtis934
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I used to spray lube down my cables after removing them from the convenience center, but even that didn't provide long term relief. Dropping the bottom and replacing the cables and valves is the only sure bet.
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Old 09-17-2021, 04:24 PM   #3
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replacing the whole set up is what I have always heard and going with Valtera they use a solid cable as opposed to braided. now at the Rally in the tips and tricks part one person had an ingenuous idea idea that I will try. he removed the handle then slid a tube over the rod and clamped it to the fitting connecting everything to the panel.
then he poured motor oil in the tube and marked it, the next day the oil was down a couple inches with nothing leaking anywhere. he says his cable pull smooth and no issues. sounds like a great fix to try first but I would go with some sort of light synthetic oil. worth a shot.
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Old 09-17-2021, 04:29 PM   #4
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When I dump, I use wd40 with a straw pointed into the cable, then work the handle in and out while you spray.
Thetford make a lubrication that you pour into the tank to lube the valve.
I've seen YouTube videos where openings have been cut in the bottom and they installed grease fittings in the valve. They use silicon based grease.
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Old 09-18-2021, 07:11 AM   #5
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......at the Rally in the tips and tricks part one person had an ingenuous idea idea that I will try. he removed the handle then slid a tube over the rod and clamped it to the fitting connecting everything to the panel......then he poured motor oil in the tube and marked it, the next day the oil was down a couple inches......
Sounds like a good idea. Similar to what I've done on dirt bikes in the past.
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Old 09-18-2021, 08:05 AM   #6
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My black tank had gotten so hard to pull I was afraid it would break. I had read a lot of recommendations on here for Valtera valves and paid the dealer to replace the black tank valve. Well worth it for me. When new, I could pull the handle with 2 fingers easily and now after maybe 5-6 years it takes 3. LOL
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Old 09-19-2021, 09:00 AM   #7
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Thanks for the tips. Good news is we are done with our major trip for now and have some time to resolve. Prone to dropping the bottom but will see how outrageous the dealer charge will be to handle it for me, but I lean toward DIY
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Old 09-19-2021, 10:17 AM   #8
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Thanks for the tips. Good news is we are done with our major trip for now and have some time to resolve. Prone to dropping the bottom but will see how outrageous the dealer charge will be to handle it for me, but I lean toward DIY
OR swap to electric valves.
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Old 09-22-2021, 01:50 PM   #9
Speck56
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Waste handle

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Originally Posted by Pocketlake1 View Post
The pullout handles for the 3 waste tanks are getting tough to pull out. Sprayed silicone on the visable rods but it has helped only slightly. Concerned something is going to break eventually. Can anyone advise of how the drains and associated mechanisms can be serviced? Iím hoping it does not involve removing the covering on the bottom of the rig but i will do whatever is necessary. Thanks for any insight. Ken
Try Thetford Drain Valve Lubricant
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Old 09-22-2021, 02:12 PM   #10
Starchey
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I had the same problem got so bad it froze. Like you I didnít want to pull the bottom and replace them so I just removed the handle and cable from the wall turned it 90 degrees then added three in one penetrating oil. Kept it that way for three days adding oil periodically. Works now no issues, I know I will need to replace all four but I donít have to do it right now. I have a 2019 3930 FB
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Old 09-22-2021, 02:35 PM   #11
bcrvman
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Try Thetford Drain Valve Lubricant
That product is to lube the rubber seals. It can't do anything with the release cables as there is no contact between the two, one is outside the other inside.
Here is a complete DIY for how the OP can replace the valve.
https://www.doityourselfrv.com/repai...mp-gate-valve/
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Old 09-22-2021, 03:22 PM   #12
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Had the same issue in my Alpine, RV guy said put some ice melt,(about half a bag), down your toilet. Wait two hours, worked fine after.
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Old 09-22-2021, 05:38 PM   #13
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After fighting with the same problem for the two valves in the convenience center I finally bit the bullet and replaced those two valves. The third valve still works OK. Perhaps because the cable pull is straight vs. curving around obstacles.
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