Removing a barbed PEX fitting? - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-06-2015, 05:21 PM   #1
Member
 
Name: Fallon
Trailer: Shopping
Colorado
Posts: 72
Removing a barbed PEX fitting?

New to us 2002 Casita, got a great deal on it & knew it had a few gremlins... When I filled the tank & turned on the pump, I got a gyser in the bathroom.

There is a 90 degree fitting going from the PEX pipe to the faucet & the fitting connects to the faucet with a plastic nut. Nut looks to have gone where it attaches to the fitting. I've dremeled off the copper compression ring (hopefully without damaging the PEX), but can't pull the fitting out, due to what I assume are barbs inside. I've got about 6" of PEX coming out of the wall to deal with & 6" of room to cover, so I can't cut it shorter.

Any suggestions?

Or do I fight the barbed 90 degree fitting on the other side of the wall & replace the whole section (might have issues with pipe length on that side too if I cut it though).
__________________

__________________
Fallon is offline   Reply With Quote
Old 06-06-2015, 06:41 PM   #2
Senior Member
 
Name: Terry
Trailer: 1996 Casita Freedom Deluxe 17 ft
Colorado
Posts: 392
Any Home Depot will sell you an orange horseshoe-shaped plastic thing that releases the PEX barbs. They are easily removable and re-usable. You can watch this video:

__________________

__________________
Terry G is offline   Reply With Quote
Old 06-06-2015, 06:47 PM   #3
Senior Member
 
Name: Mike
Trailer: Bigfoot 17' DLX
Alaska
Posts: 379
Registry
It shouldn't actually be a barbed fitting if the tubing is really PEX.
__________________
trainjunkie is offline   Reply With Quote
Old 06-06-2015, 06:55 PM   #4
Senior Member
 
Name: Eddie
Trailer: 2014 Escape 21
Virginia
Posts: 1,556
You should be able to work the fitting out of the PEX. The rings are not very deep on PEX fittings. Dip the fitting and PEX in some hot water and let it soak for a minute. Use a rag to hold the fitting, you should be able to work it out the pipe.
Eddie
__________________
Eddie Longest is offline   Reply With Quote
Old 06-06-2015, 08:11 PM   #5
Member
 
Name: Fallon
Trailer: Shopping
Colorado
Posts: 72
Will give it another shot with some heat. I've got the release horseshoes for some sharkbite fittings, unfortunately this is a crimped one, not a sharkbite.

I tried wiggling it for a bit while pulling as hard as I dared after dremeling off the crimp ring, but didn't work the first go around. Given how stiff & short it is I probably can't get it into warm water, but do have a heat gun.
__________________
Fallon is offline   Reply With Quote
Old 06-06-2015, 08:31 PM   #6
Senior Member
 
Name: Eddie
Trailer: 2014 Escape 21
Virginia
Posts: 1,556
Just looked at my Casita.
Cut the PEX ring and pipe inside the closet, replace the sink connector and run a new piece of pipe to the L in the closet and crimp both ends.
Crimp the sink connector on the pipe then feed the pipe into the closet and then connect the sink connector. Crimping in the closet will be a lot easier than under the sink.
Eddie
__________________
Eddie Longest is offline   Reply With Quote
Old 06-06-2015, 08:34 PM   #7
Senior Member
 
Name: Eddie
Trailer: 2014 Escape 21
Virginia
Posts: 1,556
under the sink will have to be a crimped fitting. You can use a 90 deg. sharkbite in the closet.
Eddie
__________________
Eddie Longest is offline   Reply With Quote
Old 06-07-2015, 11:49 AM   #8
Member
 
sparky1's Avatar
 
Name: richie
Trailer: Casita patriot deluxe (sold)
Virginia
Posts: 98
use a dremmel tool cut the Ring the pipe can be wiggled off the Barbed fitting. crimp a new ring
__________________
sparky1 is offline   Reply With Quote
Old 06-07-2015, 12:11 PM   #9
Member
 
Name: Bill & Jeanie
Trailer: Building camper in Ram Promaster van
North Carolina
Posts: 41
Quote:
Originally Posted by Fallon View Post
New to us 2002 Casita, got a great deal on it & knew it had a few gremlins... When I filled the tank & turned on the pump, I got a gyser in the bathroom.

There is a 90 degree fitting going from the PEX pipe to the faucet & the fitting connects to the faucet with a plastic nut. Nut looks to have gone where it attaches to the fitting. I've dremeled off the copper compression ring (hopefully without damaging the PEX), but can't pull the fitting out, due to what I assume are barbs inside. I've got about 6" of PEX coming out of the wall to deal with & 6" of room to cover, so I can't cut it shorter.

Any suggestions?

Or do I fight the barbed 90 degree fitting on the other side of the wall & replace the whole section (might have issues with pipe length on that side too if I cut it though).
In working with PEX, a heat gun (or hair dryer) is your friend. When heated PEX becomes quite plastic and will easily pull off of a fitting after the crimp ring is removed. A cutting wheel on an angle grinder or dremel tool works well to remove the ring. If you accidently get a kink in PEX, application of heat will cause it to return to it's original form. In my opinion the twist on PEX connectors should be avoided as they tend to loosen up over time, particularly with vibration. Sharkbites seem to seal well but I prefer a crimp ring as they are much cheaper and more compact.
__________________
wbullivant is offline   Reply With Quote
Old 06-07-2015, 07:02 PM   #10
Member
 
Name: Fallon
Trailer: Shopping
Colorado
Posts: 72
Heat gun did the trick. Will be putting it back together after dinner. Picked up some extra PEX & a 90 sharkbite in case I need to go deeper. They only had the 90 to sink fitting in compression though. Have some Oetiker rings & crimper though.

Sent from my A0001 using Fiberglass RV mobile app
__________________
Fallon is offline   Reply With Quote
Old 06-07-2015, 10:22 PM   #11
Member
 
Name: Fallon
Trailer: Shopping
Colorado
Posts: 72
Yay, after re-tightening the nut a 2nd time I've been able to completely validate the fresh & city water systems. Couldnt get the water heater to fire up, but only tried for a couple minutes & there was probably a lot of air in the lines.

Sent from my K00C using Fiberglass RV mobile app
__________________

__________________
Fallon is offline   Reply With Quote
Reply

Tags
vin


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pex water line question Ron in BC Modifications, Alterations and Updates 15 03-13-2013 12:43 AM
custom fitting a memory foam mattress Phillip Modifications, Alterations and Updates 12 06-02-2009 06:00 AM
thoughtful engineering and fitting-out? Richard Davis Care and Feeding of Molded Fiberglass Trailers 13 08-08-2008 08:37 PM
PEX and freeze resistance Per Walthinsen Plumbing | Systems and Fixtures 2 10-16-2006 07:05 AM
Really crummy Scamp shower fitting Steven Tonnesen General Chat 15 02-13-2006 11:39 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:02 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.