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Old 06-24-2017, 08:33 PM   #1
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State: California
Posts: 12
THOR #8002
Black water tank gate valve

I bought a new gate valve about a month ago to replace a broken valve. I installed it and was happy how easy it was. After a month it started sticking and to the point that it was going to break. I decided to take it off and check things out. Once I got it off it was completely dry off any lube which was making the valve hard to operate, so i read that petroleum jelly should be used but I didn't have any so I used some red gear axle grease and I put it together and works great. I hope that this will be ok. Has anyone ever used this kind of lube on this valve before?
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Old 06-24-2017, 08:38 PM   #2
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Brand: Thor Motor Coach
Model: 2017 Windsport 29M
State: Indiana
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THOR #5196
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Originally Posted by mprumsey View Post
I bought a new gate valve about a month ago to replace a broken valve. I installed it and was happy how easy it was. After a month it started sticking and to the point that it was going to break. I decided to take it off and check things out. Once I got it off it was completely dry off any lube which was making the valve hard to operate, so i read that petroleum jelly should be used but I didn't have any so I used some red gear axle grease and I put it together and works great. I hope that this will be ok. Has anyone ever used this kind of lube on this valve before?
Some petroleum based greases will degrade the o-rings over a period of time. The best lube is silicone grease, you can get it at most electrical suppliers.
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Old 06-24-2017, 09:05 PM   #3
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THOR #8002
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Some petroleum based greases will degrade the o-rings over a period of time. The best lube is silicone grease, you can get it at most electrical suppliers.
Thank you, I will change it out.
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