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Old 06-18-2002, 07:49 AM   #1
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Join Date: Jun 2002
Posts: 3
Unhappy Waste Water Outlet Valves

Hi. I'm Danno. New member to the Airstream Forums.

I have a 1974 Sovereign. Both the grey water and black water outlet valves don't close properly and the valve stems are bent.
Is there a separate valve that can be purchased to attached to the main outlet, so I don't get all WET when I connect the hose?
I just as soon not have to get underneath and replace both valves.


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Old 06-18-2002, 09:50 AM   #2
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1983 27' Excella
Airstreamville , Kansas
Join Date: Feb 2002
Posts: 410
I'm pretty sure those are Thetford valves and must be purchased from an AS dealer as they are a different size and style from other brand trailers. You can clean the groove where the valve slides with a dull bent screwdriver but be careful not to press too hard and gauge the groove or it will leak. Service manuals give the procedure for replacing the valves.

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Old 06-18-2002, 11:48 AM   #3
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Replace 'em.

My old thetford valves were leaking and one had a broken ear for the bolts. I simply replaced both valves with valterra as you can get parts for them almost anywhere. When I inserted the sleeve coupling into the blackwater tank I used Form-A-Gasket RTV. It allowed the sleeve to go in easily and made a positive seal.

The whole job did not take over two hours. Clean and rinse your tanks several times and it won't be too messy a job.

Ciao, Brian
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