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Old 03-22-2017, 03:02 PM   #1
Tiffin Owners Club
Join Date: Jul 2016
Posts: 35
I have a leak behind kitchen counter

I have a leak under the sink counter that I have determined is the drain hose from the mid coach bath and the kitchen sink on my 2014 Phaeton 42LH. Now that I've located the leak, my question is how do get to the hose to repair it? Any ideas? I've posted some pictures so you can see what I'm talking about. The pictures are with the slide in. Thank you.
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Jim & Carol
2014 Phaeton 42LH, Frghtlnr Chasis, 450 Cummins ISL
Flat towing 2017 F-150
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Old 03-22-2017, 03:28 PM   #2
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APhotoWizard's Avatar
Join Date: Jan 2014
Posts: 353
Well it looks like all you need to do is reach down and make the repair :-) Yes - I know the hole you took the picture through was hardly large enough for the camera.

Can you tell what is leaking? Perhaps the clamp is loose and all you need is one hand to tighten it.

If the leak is behind the wall the pipe goes though you may be able to reach it from the other side of the compartment. I assume the hose goes directly into the gray water tank. If that is true, then opening the compartment may help.

It is unfortunate that some of these things were installed before the body was built and repair requires major surgery just to get access. Look for a place to cut an access port that can be easily covered with cabinet door in case you need to get back in there later.

Had to cut a door in the back of my cabinet to get to the pipes going to the bath tub for example.

It is hard to provide other help without seeing a picture of the access and surrounding items.


My wife and I would travel full time, but we have to sleep occasionally.
2001 Tiffin Allegro Bus 40 ft DP named the Wild Eagle
Followed by the Eaglet - A 2014 Jeep Grand Cherokee.
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Old 03-22-2017, 10:52 PM   #3
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Join Date: Oct 2006
Posts: 16
We also had a leak behind the sink and our dealer told us the slide would have to come out with an estimate + - $1500
So we went up to Red Bay and they had a small worker crawl in a cabinet door and make the repairs.
Their was no way my fat *** was going in that cabinet door and come out in one piece.
Tiffin covered the cost because the fittings were not installed properly.
Our coach will be four years old in Sept. and we are so disappointed that we can no longer go to Red Bay because of the age of our coach. Once you get in the workers are great.
We have had fewer problems with our Tiffin than any of our Newmars, however Newmar has better service and they make appointments.

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Old 03-23-2017, 06:12 AM   #4
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Join Date: Feb 2015
Location: Huntingtown, MD
Posts: 600
I just replaced my flex hose 2 weeks ago because it was leaking, my flex hose was replaced 3 years ago and it's about 2.50' long.

After I removed it I realized that it was stiff and not flexing at all.

The flex hose developed a tear at the hose clamp area.

I removed my TV and cabinets to get the best access, after replacing the drain hose and testing the movement by moving the slide out in-out I hope this nagging problem is resolved.

This is my 3rd drain hose replacement in 9 years.
Earl & Sharon, 2008 Fleetwood Expedition, ISB 6.7
1995 Jeep YJ/2013 Chevy Sonic
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Old 03-23-2017, 09:31 AM   #5
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Tiffin Owners Club
Winnebago Owners Club
Join Date: Feb 2012
Location: Las Cruces, NM
Posts: 3,587
I believe that Tiffin Parts has a "kit" to make this repair. Give Service or Parts a call and talk to them.
Roger & Mary
2017 Winnebago Navion 24V
2014 Tiffin Phaeton 36GH (Sold)
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