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Old 08-09-2014, 08:55 AM   #1
1 Rivet Member
1973 31' Sovereign
Kettle falls , Washington
Join Date: Jul 2014
Posts: 15
Sewer cap size ????

73 land yacht sovern what size or do they even make a new replacement sewer cap. I bought one with garden hose fitting to run into my gray water tank and it is too small and wont fit .... help ! Lol
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Old 08-09-2014, 09:18 AM   #2
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1977 25' Tradewind
Waskesiu Lake , Saskatchewan
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Posts: 393
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Order one from your nearest Airstream dealer. The fittings are different than you will find at other RV retailers.
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1977 25' Tradewind (with two ... three... FOUR dogs)
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Old 08-09-2014, 09:55 AM   #3
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2006 23' Safari SE
Biloxi , Mississippi
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If I understand your post this what you might need.

Amazon.com: Valterra T05-2285VP Thetford to Valterra Universal Adapter: Automotive

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Old 08-09-2014, 09:55 AM   #4
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2017 26' Flying Cloud
Alamo Heights , Texas
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If your trailer has the original sewer connector, it's a Thetford connector that uses a Thetford-style (and size) cap. Most of what you find these days is Valterra, which is a slightly different size and has different tabs for the connection.

The Thetford parts are available, they're just not the most common now. This link just happens to be the first useful one that came up in a search, many other stores and websites stock what you need.
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He has all of the virtues I dislike and none of the vices I admire. ó Sir Winston Churchill
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Old 08-09-2014, 10:11 AM   #5
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1973 31' Sovereign
Kettle falls , Washington
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Thank you guys for your help... greatly appreciated
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