Thread Tools Search this Thread Display Modes
Old 06-11-2004, 09:11 AM   #1
3 Rivet Member
blucloud's Avatar

2007 27' International CCD FB
1987 25' Sovereign
1977 23' Safari
North Olmsted , Ohio
Join Date: Mar 2004
Posts: 128
Images: 20
Question Plumbing my A/S

We have a few water leaks, (plumbing), and rather that repair them we decided to replace the lines with PEX.(Yes the PO's or the PPO's let the system freeze. The pipes expanded until they burst) It appears that the supply to the water heater as well as the cold supply to the faucets is 1/2". The hot appears to be the 3/8". I am considering using 5/8 for the supply, with 3/8" taps for the faucets and 1/2 for the hot with 3/8 taps for the faucets.
The service manual is vague on this info.

Ideas greatly appreciated

You never know what you can do
until you try to undo what you did.
blucloud is online now   Reply With Quote
Old 06-11-2004, 10:23 AM   #2
Rivet Master
AYRSTRM2's Avatar
1966 22' Safari
Armada , Michigan
Join Date: May 2004
Posts: 939
Images: 4
Good Plumbing Primer

You should take a look at this thread on Plumbing, it has good pictures and descriptions on replacing lines with PEX. There you will find a couple of good links to PEX distributors, cause I know my Home Depot don't have em. But of course my local hardware store does!

I can't recommend specific sizes of tubes, but I have just replaced my kitchen faucet and am in the process of getting the water tank hooked back in the system that the PO had disconnected. And I have this to say: make sure that what you use is in common usage today, to avoid having to hunt all over town when you need a new part. Cut off any flare tubes you have and get compression fittings, maybe get rid of flexible copper whereever you can, it has been a thorn in my side. Make fixtures MORE removable than they are, avoiding sweat solder fittings.


AYRSTRM2 is offline   Reply With Quote
Old 06-11-2004, 11:19 AM   #3
Rivet Master
Join Date: Mar 2002
Posts: 1,474
Images: 19
1/2" for water supplies and 3/8" for faucets should be plenty all around and will be an easier fit in tight corners. You aren't going to be filling washing machines inside.

Good luck,

j54mark is offline   Reply With Quote
Old 06-11-2004, 06:04 PM   #4
2 Rivet Member
TroutStream's Avatar
Join Date: May 2004
Posts: 94
Images: 10

I don't mean to hijack the thread but I am up to my elbows in the same problems. I have been researching the PEX / copper relationship. I have a leak in a copper line that is absolutely impossible to get at. I have elected to try to cut out the section and am having a near impossible time accessing the one end with a pipe cutter. I may have to cut and replace far more pipe and fittings than I had intended.

Any advice would be welcome.
Attached Thumbnails
Click image for larger version

Name:	Plumbing back end.jpg
Views:	186
Size:	46.1 KB
ID:	7150  
TroutStream is offline   Reply With Quote
Old 06-11-2004, 06:16 PM   #5
Rivet Master
1975 29' Ambassador
Reno , Nevada
Join Date: May 2003
Posts: 1,351
Pex is not expensive, easy to work with, and, with Quest type connectors can be easily mated to copper. I would suggest sticking with one size/ the 3/8 OD pipe will use Quest or Flair it fittings that are a standard half inch pipe thread. (the half inch pipe ends up with 3/4 pipe thread fittings). Half inch fittings are what you will normally find on commonly available faucets and water heaters and so on. The 3/8 tubing will carry plenty of flow for typical RV uses and having only one size to worry about makes carrying or finding repair parts easier.

If you have some copper going through inaccessable areas, replace it with pex and try to re-route so it is more accessible.
bryanl is offline   Reply With Quote

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
Bringing a Plumbing System out of Long Term Storage 66Overlander Plumbing - Systems & Fixtures 5 05-18-2004 07:47 AM
tow vehicle isolated from A/S batteries?? BOBHASTINGS Electrical - Systems, Generators, Batteries & Solar 13 02-05-2004 12:50 PM
Holding tank plumbing question yukionna 1997 - 2004 Bambi 15 09-10-2003 08:00 PM
Plumbing - A Mystery Pipe Tamara Plumbing - Systems & Fixtures 8 04-18-2003 12:56 PM

Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:15 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

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