You are not logged in or registered. Please login or register to use the full functionality of this board...

Dupree sewer hose connection leak.
I learn through vision often.  There are several ways to achieve the adapter result that works.  My solution was to use a Valtera male adapter that had threads for the spiral hose however the threads needed to be removed.  The minor diameter was the inside diameter of the Dupree.  I used a metal lathe however, a wood lathe would work with care and you can find people with these pieces of machinery to turn the part for you.  Mike @landyacht found a male adapter that required no further processing.  In both instances, the fitting was glued into the Dupree.
Gordon Jones
I had made an adapter by heating a short piece of sewer hose in boiling water so I could stretch it over the fitting. May still have it somewhere.
Forest & Cindy Olivier
1999 Foretravel 36' U320
former 1998 Newell 45' 2 slide #486 

former 1993 Newell 39' #337 
2011 Chevy Tahoe 

Here is my solution to convert from Dupree to Valterra... I purchased a Valterra 5" clear bayonette adapter, and cut off the needed end. It was a perfect fit to slide over the Dupree end that usually has a hose clamped on. Now the RhinoExtreme hose kit just twists on right out of the box using the Valterra connectors.

Attached Files Thumbnail(s)
Mike & Jeannie Ginn
2000 Newell #555
2013 Chevy Avalanche
Thanks for all the info. I'll start gathering parts today.
This is a great website.
FYI, I originally tried the solid connection adaptor as Mike has shown. But the Dupree dump valve and connector on coach 540 is too close to the hole in the floor where the hose connects. As such, it simply doesn't fit with a Valterra hose connected, no matter how short you make the Valterra side. You should try a dry fit or just an eyeball of everything to make sure it will work. I ultimately had to go with the short section of sewer hose option.
Coach #540
2000 Double Slide, Bath and a half, Average sized fan for its age
Fulltiming for a while around CO
Just an update: I also found the rubber O-Rings at Grainger for about $25 for 10 - I'll get them tomorrow and let you know if they are the correct ones...
Hopefully they are the correct o-rings!
Karen & Adrian Abshire 
1998 2 slide 45' Newell towing a 2012 Jeep Wrangler Rubicon Unlimited and a 2006 Mercedes SLK320 for wifey. 
Prior: 1985 Foretravel ORED 35, 1988 38' Foretravel U280, 2000 Foretravel 42' U320, 1990 Bluebird Wanderlodge WB40
Can you tell us if the grainier part worked?? Thanks!
Rick Edgell
1998 Newell 45ft 2 Slide #467
I am still using the o rings that started this thread with total success. I am on o ring #3 from the ten pack I bought in April of 2018.
Steve Bare
1999 Newell 2 slide #531
I am on oring #1 after following rheavn's lead in May 2018.
Steve Magown
West Monroe, LA
1997 Newell #458

Forum Jump:

Users browsing this thread: 1 Guest(s)