I installed a Thrust Ball Scupper a few years ago and have been noticing that it is sticking shut. Thinking about using Vaseline or a pool gasket lubricant on it to allow it to open up when I give it gas. Searched forums and haven't seen anyone discuss this. Let me know what has worked for you.
Thrust Ball Scupper Sticking
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Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Guys, didnt your mama tell you to wash your balls every time.................
y'all are disgusting................
y'all are disgusting................
- Location
- Michigan
Mine sticks too. I’ve tried cleaning, silicone spray, and a new / “updated” larger ball. It’s better than it was but still sticks regularly. Interested if anyone has a real fix!
Heavier, solid delrin ball. Worked great for me.
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Where did you get that?
I don't know what size you need but Mcmaster has some. https://www.mcmaster.com/acetal-balls/
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Hey @McDog , you can buy you some new balls!!!!!!!!!
They only go up to 2", that might not be big enough.
The Thrust ball is 1.5 Inches so thanks for sharing. I cleaned my existing ball and valve and will try ordering a new one.
FYI after cleaning the ball and valve area its way less sticky but the ball does appear to have some wear so replacing it for $6 is probably the best option.
FYI after cleaning the ball and valve area its way less sticky but the ball does appear to have some wear so replacing it for $6 is probably the best option.
- Location
- South Florida
Thank God since mine are so old.
- Location
- Charlotte, NC
- Location
- Ontario, Canada
- Location
- Reno,NV
RV silicone Spray for slide outs, clean your balls and the seat properly and then spray this on...
FWIW - I got the new ball 
When I hold the two balls in my hand they seem exactly the same except 1 ball is old and Dirty (even though its been scrubbed) and one is new .
The real difference is when I put the balls into the scupper. The old ball seems to get stuck in the hole, the new ball goes in and out easily. This "old ball" really isnt that old considering I rode 3x last year and installed the scupper about 2 years ago. I guess these balls have a short life. I wonder if sanding the old ball with some 1000 grit sandpaper would bring it back to life.
When I hold the two balls in my hand they seem exactly the same except 1 ball is old and Dirty (even though its been scrubbed) and one is new .
The real difference is when I put the balls into the scupper. The old ball seems to get stuck in the hole, the new ball goes in and out easily. This "old ball" really isnt that old considering I rode 3x last year and installed the scupper about 2 years ago. I guess these balls have a short life. I wonder if sanding the old ball with some 1000 grit sandpaper would bring it back to life.
- Location
- Ontario, Canada
It happens when your balls get slammed around a lot, some swell, some get abrasion signs, just depends on what the conditions are around the hole...and how hard you are on them
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