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Old 11-06-2021, 01:43 AM   #1
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Join Date: Nov 2021
Location: Drain, OR
Posts: 2
Critter ate my pex

Greetings from Oregon. I have a 2005 Monaco Dynasty. Sadly a critter got busy and ate through my pex lines above the black holding tank! How in the world do I access it to repair/replace the pex lines? I do have what I need to replace the lines, however, the black tank's location leaves no room to squeeze my hand or tools between the bay door opening and the top of the tank. If I need to remove this tank and the grey tank below it, can anyone tell me how to do so? Pics would be great is you have them. Any suggestions would be appreciated. Thanks so much!
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Old 11-06-2021, 04:29 AM   #2
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Posts: 1,111
PEX repair can be made by using "Shark Bite Fittings" if the critter chewed in one spot just cut that spot and insert a Shark Bite coupler, NO crimp clamps required, just push the PEX in.

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Old 11-06-2021, 04:40 AM   #3
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run a new piece from where ever you can access it.
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Old 11-06-2021, 05:26 PM   #4
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Location: Drain, OR
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Clifford, I would use them but here is the situation: If I open the bay door, inside mounted on the bottom of the bay is the grey bank, then on top of that is the the black tank. The height of these two tanks stacked are about 1 to 2 inches from the top of bay door opening. Now mind you, the sides of these tanks are as close to the front opening as could be. Above the black tank I was able to shine a flashlight to see the pex chewed through. Inside the motorhome above all of this is the shower. No way to get my hands in such less a small opening above the black tank in the bay compartment, much less using any tools or pex components to repair or replace the lines. Anyone know how to go about removing the tanks? That seems like to only way to go. Or any other suggestions? Thanks!
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Old 11-06-2021, 08:12 PM   #5
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Are you able to access from both sides of the motorhome? On my 07 Diplomat I have a lot more room on curb side, I have no latch so I have to remove 2 screws that hold the door closed..
Doug and Sue.
07 Diplomat 40 PET
2011 Jeep Liberty pushing.
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Old 11-06-2021, 09:28 PM   #6
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I would use cell phone with camera and flash and record up under where leak is.. just to double check there is no way in there..
Next I would check and see.. also you tube... any other way to run a different line... a different way.. this is where cell phone comes in handy...
Next get 2 shark bites.. and extra pex.. find a child or small person.. I know this sound weird... but they can sometimes crawl into places.. as long as you can guarantee you can pull them out..
Use 1 shark bite and extra pex.. show them how to use.. then fish them in and let them go to it..
Of course pay them.. this sounds funny.. but my youngest daughter.. is small.. and has very tiny hands.. but sadly no mechanical knowledge.. but when I showed her what needs to be done.. she could fit into places a 250 pound man could not..
So sometimes brute is just too big.. just saying.. found a small child.. with parents ok.. and you would be amazed.. at what they can do.. when ever I have a computer problems.. I use a child..
Good luck and let us know what you did and maybe better members then me will help you
2000 southwind storm, workhorse custom chassis with 7.4l vortec
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Old 11-07-2021, 08:18 AM   #7
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Originally Posted by flamebuster View Post
Are you able to access from both sides of the motorhome? On my 07 Diplomat I have a lot more room on curb side, I have no latch so I have to remove 2 screws that hold the door closed..
X2, check the curb side.

In my case my door has a latch and swings up providing me with full access to the back side of the fresh water tank on the floor of the compartment, and the Black and Grey tanks resting on a 3/4" sheet of plywood, which is suspended with straps side to side.

I have not had to remove the tanks but believe the fresh water tank could be slide out once the lines were taken out.

The black and the grey tanks are hard plumbed into the toilet, shower & sink drains so it would be harder to pull these.

But with the fresh water tank out I believe I'd have enough access to route new pex lines. It would not be an easy job but I think doable.
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
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