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Old 12-29-2010, 09:41 AM   #1
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Vintage Airstream in good company: Prevost

So this morning a Prevost dropped in to dump and take on water. Dad assigned the kids to duty, so I supervised. And to my surprise, I discovered that the Prevost uses ... Thetford dump fittings!

Lynn
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Old 12-29-2010, 10:24 AM   #2
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Thetford

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So this morning a Prevost dropped in to dump and take on water. Dad assigned the kids to duty, so I supervised. And to my surprise, I discovered that the Prevost uses ... Thetford dump fittings!
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Lynn


What point are you making?? Airstream MH also use the Thetford. Are you saying they are not a common fitting?
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Old 12-29-2010, 11:10 AM   #3
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I think her title made her point. I understand completely.
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Old 12-29-2010, 11:37 AM   #4
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Nope, Thetford fittings are pretty uncommon nowadays. Try to locate such at a WalllyWorld, for example. I keep an extra sewer connector onboard for just this reason. It would really be the pits to be off in the backworld someplace with nothing but Valterra available. (My spare is out on loan right now.)


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Old 12-29-2010, 01:16 PM   #5
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Opps, sorry Lynn. I didn't realize you were a he! My bad.
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Old 12-29-2010, 01:17 PM   #6
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It' widely known in the RV community that Prevost and Airstream owners believe their s&!t doesn't stink.
The genesis of this misconception can be directly traced to the quality and utility of the Thetford system. Never leaks and vapor tight.
And please call them by the correct name. They are 'waste product offloading valves', not dump fittings.
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Old 12-29-2010, 02:16 PM   #7
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Opps, sorry Lynn. I didn't realize you were a he! My bad.
Doesn't bug me. I've seen a whole lot worse, including being invited to a sorority rush event (I attended, of course, and was subsequently invited to join as an "honorary" member) and receiving a box of tampons as a graduation present from the city (I used them to soak up spilled oil).


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Old 12-30-2010, 01:07 AM   #8
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It' widely known in the RV community that Prevost and Airstream owners believe their s&!t doesn't stink.
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The genesis of this misconception can be directly traced to the quality and utility of the Thetford system. Never leaks and vapor tight.
And please call them by the correct name. They are 'waste product offloading valves', not dump fittings.
Well - - - - you learn something every day. Today 2 things. The theory is great and I'll make sure I aquire a spare "offloading valve" fitting.

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Old 12-30-2010, 08:46 AM   #9
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It's no theory. My wife says that it doesn't stink, so that's that.

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Old 12-30-2010, 08:50 AM   #10
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When I redid my "offloading valves" I used the Thetfords again because I think they're made better than the Valterra. I hated the fact too that I always had to have a separate fitting to make slinky's or my Flush King work. So, when I put it back together, I put a Valterra end on the tube & I don't have to have the extra fitting anymore!
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Old 12-30-2010, 10:09 AM   #11
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And please call them by the correct name. They are 'waste product offloading valves', not dump fittings.
"Effluent" is the word, I think. Effluent valves.
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Old 12-30-2010, 11:13 AM   #12
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So, then, I guess, Thetford makes "waste product offload valves" and Valterra makes "Dump valves"?

That's good to know, I think.

I'll have to remember that. Maybe

In any event, it's a good idea to carry an extra if you have Thetford. I have had two brake at the attaching hooks. Both in cold weather.
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Old 12-30-2010, 01:40 PM   #13
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I assumed Prevost MHs had a little robot who came out and hooked it all up for you so you would never have to touch a dump valve yourself
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Old 12-30-2010, 04:00 PM   #14
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I assumed Prevost MHs had a little robot who came out and hooked it all up for you so you would never have to touch a dump valve yourself
Not the one I did. However, it did have electrically operated valves. Pretty goofy. The switches to run the valves were about 15 inches from the valves themselves, so all the wiring and stuff to go wrong was all there so that the person didn't have to lean over 15 inches and manually operate them.


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