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Old 09-02-2009, 09:10 AM   #1
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1989 25' Excella
Keystone Heights , Florida
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Black water tank/sticky valve

I have a sticky valve in the black water tank Any suggestions on how to correct other than replacing
I have been air streaming for some time but it seems there is always something going wrong. Am I alone or is this just part of RV'ing
Ben
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Old 09-02-2009, 09:35 AM   #2
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1975 Argosy 24
Malakoff , Texas
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Pull it out...take it apart....clean it.
Buff the contact surfaces with 600-800 grit
sandpaper for smooth slide action. Check
for burrs along the slide path. Your 1989
is 20 years old. It does seem that repairs
are part of the deal.
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Old 09-02-2009, 10:42 AM   #3
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2004 30' Classic Slideout
Fenton , Missouri
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Thetford makes a lube that you might want to try.

Thetford RV Toilet Chemicals - Bowl Cleaner, drain valve lubricant, digester

No promises but I used this on my Hi-Lo that I kept for 14 years. It never got the valve to 100% but it did ease up the operation. Some holding tank chemicals also contain a lube so you might look at that also for future use.

Jack
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Old 09-03-2009, 11:59 AM   #4
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1989 25' Excella
Keystone Heights , Florida
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Thanks to everyone. I will keep working with the suggestions until I find a solution.

Thanks again
Ben
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