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06-01-2021, 07:24 PM #1
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“Flexible” tubing in a 2600RB ???
We purchased a new 2600RB last summer which was built in May 2020. Yesterday when I kicked on the pump to start the de-winterization process, a Pex fitting connected to the rear outside Spray-Port came apart. The port was connected to the Pex piping that supplies the bathroom and water heater. It was plumbed with the “flexible” tubing shown below using Pex fittings and the same Pex pinch clamps used on the other piping.
Having read some of the other threads about issues with flexible piping, when I got it pulled out I disassembled it to see what I was dealing with. It looked like the ends had been heated which was confirmed when I cut a pinch clamp off. When I cut the tubing in half, the “unshrunk” O.D. and I.D. were noticeably bigger than the Pex tubing - it wouldn’t fit inside a 1/2” pinch clamp, and a Pex fitting as loose in the tubing. The tubing actually turned pretty easily on the fitting at one of the undisturbed joints.
There is apparently quite a bit of the flexible tubing in the trailer, most noticeably the winterization piping at the pump under the kitchen cabinets. The pictures on the other threads that mention flexible tubing show red and blue tubing - is that a type or variant of Pex tubing? Has anyone else seen the type of tubing I have, with the ends heated and shrunk? Do you have any of this in your GD unit? And yes, I will be calling GD for an explanation.
Last edited by RustyCas; 06-01-2021 at 07:30 PM.
Rusty & Cathy
2021 Imagine 2600RB
2016 GMC 2500HD Crew Cab Long Bed 4WD 6L
Husky 32217 Centerline WDH
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06-01-2021, 08:42 PM #2
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Douglas & Christine
2019 Ford F-250 XLT 6.2L V8 Fx4 Crew Cab short-bed
2021 Imagine 2600RB, Build 5/2020
Equal-i-zer 4-Point Sway Control™, 10000/1000 bars; Ford brake controller; LevelMatePRO+®
Goodyear Wrangler AT Adventure LT275/70R18 (E)
Westlake Super ST Load Range E 10 p.r.
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06-01-2021, 11:08 PM #3
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I can feel your pain. I just finished replumbing my 28BH Reflection. I posted some info in the link below that should help.
https://www.mygrandrv.com/forum/show...ebuild-started
Good luck,
KevinKevin and Jennifer
2016 RAM 3500 Laramie Mega Cab CTD Aisin 4x4 SRW
2019 Reflection 28BH (Built 2/2019)
- 78" Theater Seat, Second AC, Dual Pane Windows
- Sailun 235/85 R16 Tires
Blue Ox Super Ride BXR7200 with a Demco Factory Prep Bracket 6099
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06-02-2021, 09:32 PM #4
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Oh wow, that is exactly the fitting that failed on mine! It was connected to the Spray-Port. Failed in exactly the same manner. I hadn’t touched it, so must have been overtightened when installed. Thanks for the picture because my wife seems to think I broke it somehow - gotta show her that picture!
Last edited by RustyCas; 06-02-2021 at 09:34 PM.
Rusty & Cathy
2021 Imagine 2600RB
2016 GMC 2500HD Crew Cab Long Bed 4WD 6L
Husky 32217 Centerline WDH
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06-02-2021, 09:39 PM #5
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Also, sorry I started this thread in the wrong place - for some reason the technical forums just weren’t showing up on my phone. Now I see them. Again, sorry.
Rusty & Cathy
2021 Imagine 2600RB
2016 GMC 2500HD Crew Cab Long Bed 4WD 6L
Husky 32217 Centerline WDH
Re-pack bearings necessary?
Today, 07:58 AM in Axles, Brakes, and Suspension