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Old 04-12-2004, 11:25 AM   #1
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Angry Is there a standard size...for the waste outlet?

Is there a standard size for the waste outlet on my 79 Soverign (center bath)? I bought a replacement from Camper World that is too small in diameter for the bayonete lock to fit on the black water tank outlet. I don't remember having this problem on my 73 Ambassador, but it had a working sewer hose in good repair.

Is there an adaptor to fit the 3" sewer hoses, is there a valve hose adaptor greater than 3", or has this valve been modified on my 79?

Help, help, my cup runneth over.....

Happy trails,
Skip & Betts
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Old 04-12-2004, 11:37 AM   #2
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The adapters you need, "must" be made by Thetford.

Any others will not fit.

We have all of them.


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Old 04-12-2004, 11:38 AM   #3
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Here is the question.

Is the connection on the trailer white or black?

White requires a Thetford hose end, black requires a Valterra hose end. The colors will match. If the one on the trailer is black plastic then it has been changed from the standard Thetford that Airstream used on your vintage.
Brett G
WBCCI #5501 AIR # 49
1978 Argosy 28 foot Motorhome

Wise men talk because they have something to say; fools, because they have to say something. -- Plato

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Old 04-12-2004, 11:45 AM   #4
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Talking thanks again for a speedy reply

many thanks to you guys.

yes, the fitting on the valve is white. what c.w. sold me is valterra.

Andy I'm going to your link right now to get what we need. Thanks again
Happy trails,
Skip & Betts
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Old 04-12-2004, 02:05 PM   #5
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Local item

Skip, you can get that fitting at Wal-mart.

it is not uncommon. you will know that you are looking at it when you see a fitting that has both the male and the female adapter on it.

I bought mine at Walmart and it is black.

Oh, and it was not made by Thetford

And furthermore, I believe it fits your fitting, I mean literally

No need to pay shipping from Corona CA.

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Old 04-12-2004, 08:33 PM   #6
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Valterra does make a black adapter. While I have the adapter for use with my FlushKing, I use the white Thetford terminal cap and greywater hose cap most of the time. The Camping World in Nashville, TN. has all the fittings as of several weeks ago but did not have them 3 years ago when I first started looking for them.

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Old 04-12-2004, 10:55 PM   #7
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Thumbs up thanks Ken..

I checked wally world last sun. all of the stuff in the camping section was sparce. Florence is usually late to get seasonal stock. I'll keep checking..thanks
Happy trails,
Skip & Betts
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Old 04-18-2004, 10:05 AM   #8
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I went to Wal-Mart to get some SuperClean for the interior clean up.
I was amazed at what the had in the RV section. We have trailer inspection and a front relector was broken. I was told it was obselete, there it was on the wall. Reese hitches $100.00.

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