Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-28-2007, 02:08 PM   #1
Gambierite
 
davida's Avatar
 
1979 31' Sovereign
vancouver , BC
Join Date: Jun 2006
Posts: 85
Piecemeal replacement of poly tubing & fittings?

It looks likely that I have poly everywhere (and here I thought it was PEX!).

I'm happy to embark on replacing the stuff to PEX, but I'd really like to first fix the current problem, which starts with a leaking valve.

So, can one connect PEX fittings (e.g. the Qest/Seaquest/Watts kind) on poly tubing, so that the replacement job can be done in segments? (first, fix the first leak, then find the second leak, then...). It would make it much easier for me politically if the water was available at least part of the weekend...

Also, the current tubing is 3/8", but it seems to be hard to find 3/8" PEX. Would the wise move be to switch to 1/2" when I do the changeover, or is that a bad idea?

--david
__________________

__________________
davida is offline   Reply With Quote
Old 05-28-2007, 02:22 PM   #2
Rivet Master
 
juel's Avatar

 
1976 31' Sovereign
Currently Looking...
Chandler , Oklahoma
Join Date: Oct 2004
Posts: 1,770
Images: 24
Yes, you can do that. I had a leak in the bathroom closet of my 78 Argosy. Didn't really want to pull all the old poly when I had no problems anywhere else in the trailer. So just fixed what needed fixed and it's been working great pressured up at the lake. I would have liked to have replaced everything, but "if it ain't broke, don't fix it" was my motto. I wanted to get the Argosy to the lake since I was going out of town, so time was short and I had other fixes I wanted to work on. If I had a 34' trailer I would certainly have had to do a patch job. Get on the internet and look up PEX. There is a company here in Oklahoma that ships all over the country. They will probably have what you're looking for. I believe it's Pexconnection.com
__________________

__________________
juel is offline   Reply With Quote
Old 05-28-2007, 03:34 PM   #3
7xp
2 Rivet Member
 
1978 31' Excella 500
Santa Maria , California
Join Date: Aug 2006
Posts: 36
David
I did a search here on airforums for polybutylene. It appears that the fittings are more the problem then the tubing. I would think that if you have enough free room to move your existng tubing around, you might be able to cut the bad fitting out and replace it with one from Seatech. They are available in 3/8" size (1/2" OD). Here is one source for Seatech fittings. FreshWaterSystems.com - SeaTech® Fittings
If Lew (lewster) chimes in, he might be able to tell you more about weather or not the Seatech fittings will work with the polybutylene tubing. Good Luck..."Mac"
__________________
7xp is offline   Reply With Quote
Old 05-28-2007, 04:19 PM   #4
Rivet Master
 
jdalrymple's Avatar
 
2009 27' FB Flying Cloud
1991 35' Airstream 350
Jay , Oklahoma
Join Date: Oct 2006
Posts: 1,602
I have an early eighties vintage home and AS. Both plumbed with polybute. Patched some leaks in the house with PEX, then gave up and completely re-plumbed the entire house in PEX. To patch a liitle at a time is fine, you just need fittings to connect PEX to polybute. Lowes has a good selection. The fittings were a problem with polybute, but later study shows the cholrine breaks down the piping over time, too. As most of the leaks in my house were mid-pipe, not at the fittings, this seemed true. Good Luck!
__________________
Jeff & Cindy
'09 27FB Flying Cloud
'91 350 LE MH
jdalrymple is offline   Reply With Quote
Old 05-28-2007, 06:24 PM   #5
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,281
Someone called?

You can use the Sea-Tech fittings on any of the following of the same size: copper, PEX polybutelyne, polypropylene, CPVC. As long as the outer diameter is consistent between the tubing, you can join dissimilar materials with no problems. That's the beauty of the stuff!
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Reply


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
Water heater replacement Craig Water Heaters, Filters & Pumps 36 12-18-2014 10:13 AM
Window Frame Replacement Charles D. Bennett Windows & Screens 20 08-16-2002 07:03 PM
Door Lock replacement? 3Ms75Argosy Doors & Locks 2 08-16-2002 12:12 AM
Accordian Door Replacement Tamara Upholstery, Blinds, Walls & Interior Finishes 2 06-17-2002 01:08 PM
61 Bambi Panel Replacement 61BambiCanada Ribs, Skins & Rivets 0 06-07-2002 10:41 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:40 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.