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Old 06-07-2008, 06:11 PM   #1
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1974 29' Ambassador
1971 31' Sovereign
Klickitat , Washington
Join Date: Oct 2007
Posts: 16
Missing sewer fitting - what's best to do?

Just got a new-to-me 71 Sovereign from a resort where it had been hooked up as a rental. The sewer outlet has no fitting for a hose - I assume the po just used a clamp to hold the sewer hose on. Currently, the sewer outlet pipe has a black sewer drain plug in place.

This airstream will be parked for the foreseeable future, to be used as a living space. Can I get the fitting for the sewer outlet, and how should it be attached? Would either a Thetford or Valterra fitting fit on the pipe? Is the clamped sewer hose an adequate connection for a non-mobile AS, or would it be a problem if I wanted to flush the tank thoroughly?

And, I'd appreciate any hints as to the best way to handle the fix. Haven't had to delve into this particular system before.

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Old 06-07-2008, 06:16 PM   #2
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1977 27' Overlander
1973 27' Overlander
1963 19' Globetrotter
Naples , Florida
Join Date: Nov 2007
Posts: 1,259
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if you are leaving it hooked up, i would use a fernco connector and hard pipe it to sewer,weed wackers are hard on flex hoses.

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Old 06-07-2008, 06:19 PM   #3
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2002 25' Safari
Dewey , Arizona
Join Date: Mar 2005
Posts: 12,413
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Originally your trailer had a Thetford fitting at the end of the pipe. Sounds like the PO removed it and put a threaded drain cap (?) on the end. If you are not traveling a clamp and a hose would work fine. If you travel I would put a Valterra fitting on the pipe. The parts are easier to find and some dumps leave a hose for you to hookup (always a Valterra).

I did find one place, The RV Pit Stop in Quartzite, AZ that had a Thetford adapter as well.


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Old 06-07-2008, 08:34 PM   #4
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1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,362
If your trailer was permanently moored, the holding tanks may have been removed. IF that happened, look to make sure there is a trap, or bend, somewhere in the drain plumbing before the outlet. If there isn't one, sewer gas can (and probably will) travel up the pipe, and smell really bad.
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