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Old 06-13-2008, 10:20 AM   #1
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1973 25' Tradewind
Spearfish , South Dakota
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Blackwater tank valve leaking...

On our 73 Tradewind, the black tank dump valve seems to leak a bit. Could that be the result of an old, dry sealer?

If so, is that something that is replaced now and then? Can it be lubricated or softened somehow to make it seal better?

Thanks
Bob
Spearfish, SD
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Old 06-13-2008, 10:38 AM   #2
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Thedford has a product called "valve lubricant" that has worked for me. Just follow the label instructions. you just pour some down the toilet, and let it sit for a few days... It makes the rubber seals plump up a bit.
I've also had success with it in the toilet itself, when it wasn't holding water.
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Old 06-13-2008, 10:57 AM   #3
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Thanks Chuck! I'll get some.

Bob
Spearfish, SD
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Old 06-13-2008, 11:30 AM   #4
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Quote:
Originally Posted by Ketchum View Post
On our 73 Tradewind, the black tank dump valve seems to leak a bit. Could that be the result of an old, dry sealer?

If so, is that something that is replaced now and then? Can it be lubricated or softened somehow to make it seal better?

Thanks
Bob
Spearfish, SD

Your valve is 35 years old.

Replace it.

Messing around with it, can cause health problems for you and anyone that may be near your trailer.

Taking that chance ruins the purpose of Airstreaming.

BS, means "be safe" not sorry.

Those valves cost a whole lot less than you would spend on doctors care.

Andy
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Old 06-13-2008, 03:49 PM   #5
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but...that would mean that you'd actually have to touch it.

I'll go w/ valve lubricant...for as long as it actually works. When it stops working...then I'll buy a new trailer.

no, seriously, I'll replace it. but I won't like it.


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Old 06-25-2008, 09:40 PM   #6
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Bob,

I'm interested in how you solve the problem. My 73 Overlander may be developing a similar problem.

Rick
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Old 06-26-2008, 11:52 AM   #7
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My 44 year old thetford valve was just replaced with a new Valterra valve ($10.00). I was successful in making an adapter out of 1/2" thick HDPE plastic for the switch. I can make more if there is a need, but try the valve lubricant first. The o-ring in my valve had moved and would not let the valve close all of the way.

Derek
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Old 07-20-2008, 07:47 PM   #8
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1978 31' Excella 500
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can anyone tell me how the valve is put on the tank 1978 rear bath excella its leaking and smelling up the trailer im two hr away from the trailer so i need to take everything i need down for repairs last weekend it did not leak can any help thank lars
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