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06-15-2009, 11:56 PM
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#1
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1 Rivet Member
1975 25' Tradewind
Sammamish
, Washington
Join Date: Apr 2008
Posts: 6
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Black Water Tank Leak
Looking for a temporary solution to 1) stop toilet from draining due to bad seal and 2) stop black water tank from leaking due to bad seal. Ironically, both seals were fairly good until I used a toilet tank tissue digester and now both have gone bad.
Ultimately I know I will need to replace both but hope to make it through this summer before taking on this project in the fall.
Any simple and tried suggestions that will help me limp through the rest of this camping season. For example, is there a thick lubricant that I can apply to help the toilet seal (i.e. petroleum jelly??). Thanks for any and all input.
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06-16-2009, 12:18 AM
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#2
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by nalesueur
Looking for a temporary solution to 1) stop toilet from draining due to bad seal and 2) stop black water tank from leaking due to bad seal. Ironically, both seals were fairly good until I used a toilet tank tissue digester and now both have gone bad.
Ultimately I know I will need to replace both but hope to make it through this summer before taking on this project in the fall.
Any simple and tried suggestions that will help me limp through the rest of this camping season. For example, is there a thick lubricant that I can apply to help the toilet seal (i.e. petroleum jelly??). Thanks for any and all input.
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Unfortunately, the only way to stop the holding tank from leaking, is to not use it.
Is it the tank, or the dump valve, that's leaking?
Andy
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06-18-2009, 11:28 PM
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#3
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1 Rivet Member
1975 25' Tradewind
Sammamish
, Washington
Join Date: Apr 2008
Posts: 6
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It is the dump valve that is leaking, not the tank. I've been reading the other posts on how to replace it. Sounds straightforward, but not necessarily a quick fix.
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06-18-2009, 11:47 PM
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#4
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by nalesueur
It is the dump valve that is leaking, not the tank. I've been reading the other posts on how to replace it. Sounds straightforward, but not necessarily a quick fix.
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With a couple of instructions, you can change that valve in about an hour.
Andy
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06-19-2009, 02:27 PM
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#5
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1 Rivet Member
1975 25' Tradewind
Sammamish
, Washington
Join Date: Apr 2008
Posts: 6
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Any good recommendations for sources to find repair manuals? We have a 1975 25' tradewind
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06-19-2009, 02:37 PM
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#6
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4 Rivet Member
2008 16' Safari
Destrehan
, Louisiana
Join Date: May 2009
Posts: 395
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The dump valves are not AS specific. Your local RV dealer should be able to supply the parts. These aren't hard to change, just kind of nasty.
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06-21-2009, 02:15 PM
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#7
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3 Rivet Member
1969 27' Overlander
, Michigan
Join Date: Mar 2002
Posts: 119
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I replaced the dump vaulve on my 69 overalander. What I thought would be a simple repair turned into a 2 weekend job chipping away soaking wet foam, pulling and rebuilding the rusted metal box the black tank is enclosed in, and minor reblumbing to hook it all up.
Works great now.
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07-18-2009, 05:47 PM
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#8
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3 Rivet Member
1984 31' Airstream310
on the road
, CA and OR this summer!
Join Date: Apr 2009
Posts: 101
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ohh gawd....i'm scared....
my black water valve leaks, i'm rendering it useless till after a few pints of bleachy water
are there any tips or pointers?
__________________
1984 310 Limited Motorhome
my AS Moho blog for the love of all vehicles round and shiny
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07-18-2009, 06:05 PM
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#9
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Rivet Master
1968 28' Ambassador
Cedaredge
, Colorado
Join Date: Jul 2008
Posts: 2,542
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You can put the cap on the end of the tank line. Even if the valve leaks the cap on the end of the line will stop the stuff from coming out.... Until you go to dump it, then be ready for a little mess, have a bucket ready...
__________________
Jason
May you have at least one sunny day, and a soft chair to sit in..
2008 5.7 L V8 Sequoia
AIR # 31243
WBCCI # 6987
FOUR CORNERS UNIT
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07-19-2009, 11:28 AM
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#10
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3 Rivet Member
1984 31' Airstream310
on the road
, CA and OR this summer!
Join Date: Apr 2009
Posts: 101
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thankfully there is nothing in tank....whew!
but of course it wont hold the bleachy water either...
i'm gonna replace both valves and the Y
i have a 310 motorhome. can anyone tell me if this is a simple afternoon job, or is this a plumbing messy part scavenging nightmare that i should just pay to have fixed?
__________________
1984 310 Limited Motorhome
my AS Moho blog for the love of all vehicles round and shiny
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07-22-2009, 09:37 PM
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#11
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3 Rivet Member
1969 27' Overlander
, Michigan
Join Date: Mar 2002
Posts: 119
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Changing the valve on the motor home is straight forward as the plumbing is readily accessible.
The parts are standard and available.
Best of luck.
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08-05-2009, 01:43 PM
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#12
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Rivet Master
1988 29' Excella
Collinsville
, Illinois
Join Date: May 2009
Posts: 575
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where do you get instructions for this? How do we find out what valve to replace it with? Do you have to take it apart first? A dealer I called asked what color it was. It is enclosed in a metal box where you can't even see it.
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08-05-2009, 05:05 PM
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#13
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2 Rivet Member
1992 29' Excella
DFW
, Texas
Join Date: Oct 2008
Posts: 23
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Here is one reference. I went through this process earlier this year.
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08-24-2009, 08:16 PM
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#14
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3 Rivet Member
1969 27' Overlander
, Michigan
Join Date: Mar 2002
Posts: 119
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Called Airstream Parts in Jackson Center. They identified the correct replacement based on model and year. You may need a dealer to drop ship it to you.
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05-11-2011, 03:10 PM
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#15
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New Member
1989 29' Excella
1973 Argosy 20
Currently Looking...
1978 24' Argosy 24
cincinnati
, Ohio
Join Date: Mar 2009
Posts: 3
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I need new seals for my dump valve in my 1973 argosy. Nothing at the RV store fit. Any Ideas ? I called Thetford themselves but got no luck.
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05-11-2011, 03:31 PM
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#16
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by Cintikaren
I need new seals for my dump valve in my 1973 argosy. Nothing at the RV store fit. Any Ideas ? I called Thetford themselves but got no luck.
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Plastic shrinks in time. "IF" you found the seals, and installed them, you will spend a bunch of time, that might last a few months.
The best solution is to replace valves that are 38 years old.
New valves will probably last another 38 years.
And, the new valves will save you some headaches and gray hair.
Andy
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