RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-10-2007, 09:11 PM   #1
3 Rivet Member
 
Devils Lake , North Dakota
Join Date: Mar 2007
Posts: 169
Question PEX Conversion

I am thinking or ripping out the copper and going with PEX in the 26' Argosy.

Never played with PEX but have done copper and PVC.

I was thinking of running 2 manifolds. One for hot and one for cold and with the ability to shut each fixture off individually.

Any problems with the system?? Any pointers or pitfalls to avoid??
Sundance is offline   Reply With Quote
Old 07-10-2007, 09:24 PM   #2
Rivet Master
 
Fyrzowt's Avatar
 
Currently Looking...
West of Fort Worth , Texas
Join Date: Aug 2006
Posts: 6,698
Images: 8
I think it's a great idea, something many of us have either done, or are in the process of doing. It is easy to work with, more forgiving in freezing conditions. There are various types/brands of fittings.
There are several threads that have a lot of info in them - rather than re-post all of that, I would suggest a search.
Dave
Fyrzowt is offline   Reply With Quote
Old 07-10-2007, 09:33 PM   #3
2 Rivet Member
 
MontanaArgy's Avatar
 
1976 Argosy 20
Helena , Montana
Join Date: Apr 2004
Posts: 28
Send a message via AIM to MontanaArgy Send a message via Yahoo to MontanaArgy
Manifolds are good! ... Sort of!

I converted my 20' to PEX. Was pretty easy, I bought the little block crimper from Home Depot, it is quite a bit cheaper than the squeeze type, and now easy to keep in the trailer in case of need on the road. Worked fine, but much slower, hey only doing it once anyway! Never did get to the shower though, and of course I left it one night tooo long in those early fall clear cold nights, I now have to convert those lines too. PEX had no problems.

I did do the manifolds, (Home Depot) with ball valves on each connection. It is very nice, I only need to put water to the fixture I need, especially nice in freezing weather. With the above mentioned shower problem I go right along using the trailer, just turned off the valves to the shower, never missed a beat, just a shower!

Two disadvantages though, they hold lots of antifreeze. You need to flush thoroughly in the spring to get clean water all the way out of all the lines. Second, I find a tendancy to use more hot water, as that manifold is full of cold water and it takes awhile to flush all that through before you get the hot. It actually seems to mix slowly in the manifold, like a mixing chamber. It isn't like the cold flushes straight through, sort of blends from cold to hot at the tap. Makes no difference on the cold side. ...It would be great if I could design a little recirc system from the hot manifold back to the hot water tank, switch a little pump on for a minute, and away you go!
MontanaArgy is offline   Reply With Quote
Old 07-10-2007, 09:38 PM   #4
Rivet Master
 
mandolindave's Avatar
 
Join Date: Mar 2003
Posts: 2,189
Images: 4
I like PEX.

It's lighter and way more freeze resistant than copper. I have a PEX water line in my farmhouse that freezes a few times a year , but it never splits. I would suggest putting in a bypass for the water heater. That limits the amount of anti freeze you use for the water tank. Maybe try a search here on the forum on that topic.
mandolindave is offline   Reply With Quote
Old 07-10-2007, 10:30 PM   #5
2 Rivet Member
 
74"Twinkie"'s Avatar
 
Bonney Lake , Washington
Join Date: Jul 2007
Posts: 41
Images: 22
PEX works great. I re-plumbed my 26' Argosy with 1/2" lines. One for hot and one for cold. (no manifolds)(less water to purge) I put in a tee at each fixture. I can get suprised in the shower if my wife turns on the kitchen faucet, but that will happen unless you use a pressure balanced shower valve. I put in shut-off valves (angle stops) at each fixture.
I made sure that all fittings were placed in heated areas. While the PEX lines are very forgiving under freezing conditions the fittings are not. The PEX lines are tough, but keep them away from abrasive things.
Good luck. Dennis
74"Twinkie" is offline   Reply With Quote
Old 07-11-2007, 02:08 AM   #6
Rivet Master
Commercial Member
 
Vintage Kin Owner
Naples , Florida
Join Date: Dec 2005
Posts: 7,393
You'll find PEX used exclusively in new Airstreams AND just about every new RV made today. You don't need a crimp tool (especially burdensome in tight areas) if you use Sea-Tech push-in fittings. They work very well, and I have not had a single leak in any system I have installed or repaired in the last 2 years of their use.

They are sold in HD and Lowes as Watts, come in lots of sizes and types, and will certainly do the job for you in your conversion.

Be sure to save all of that copper you rip out....it's worth some serious $$$$ now.
__________________
lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
lewster is offline   Reply With Quote
Old 07-11-2007, 08:41 AM   #7
Rivet Master
 
Zeppelinium's Avatar

 
1973 23' Safari
1977 23' Safari
2014 25' Flying Cloud
Palmer Lake , Colorado
Join Date: Oct 2005
Posts: 4,024
Send a message via Skype™ to Zeppelinium
I redid my Sovereign, details in this thread:

http://www.airforums.com/forums/f443...ign-23313.html

You can see I bought the squeeze tool. I like the small fittings and any excuse to buy a tool is a good and sufficient excuse!

After I did a trip in February in the Caravel when the temps were hovering around Zero degrees F from here (Colorado) to Albuquerque to Flagstaff I decided to change it over to PEX, too. The one area that I found to be most distressing is I couldn't remember to pour anti-freeze in the drain line from the sink, so I froze up the lower J-trap one night, but fortunately it didn't break.

Besides the drain pitfall noted above, I think the most vulnerable item in the plumbing system (after you get the PEX installed) is the valve in the toilet. If you anticipate camping and letting the trailer interior drop below freezing, you need to have some way to either drain the lines or prevent water from getting to that valve. In cold weather I start with all lines drained and I have a valve in-line with the toilet supply so I can turn it off. I use bottles of (not "bottled") water to flush. I don't worry too much about holding tanks freezing if the daytime temps get above freezing. Most places I go, I only have to worry about those 20 degree temps between midnight and sunrise.

Zep
__________________
Zep@Charmedquark.net
Zeppelinium is offline   Reply With Quote
Old 07-11-2007, 08:43 AM   #8
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
I used pex and a manifold (pictured here - a little blurry but . ..) and love it! The manifold can withstand household pressure (though the water pump and water heater may not).

I love having all the valves in one easy-to-get-to spot. Makes winterizing a breeze.
Attached Thumbnails
Click image for larger version

Name:	Watermanifold.jpg
Views:	254
Size:	290.6 KB
ID:	41012  
GetOutDoors is offline   Reply With Quote
Old 07-11-2007, 10:04 AM   #9
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
Red is hot, blue is cold . . . VERY easy to install. I did buy the short-handled crimp tool, and will take it with me on bigger/longer trips, along with my Pex kit that I've made - just in case.

I also have check valves that keep water pressure from the pump going to shore water line, and shore water line pressure from going to the pump (both check valves, made of brass, are visible in the picture in my last post).
GetOutDoors is offline   Reply With Quote
Old 07-11-2007, 10:54 AM   #10
3 Rivet Member
 
Devils Lake , North Dakota
Join Date: Mar 2007
Posts: 169
That is excellent!!!! Just what I was picturing in my mind. Thanks a bunch for the great pictures. I hope you don't mind if I pick your brain when I get ready to do mine........
Sundance is offline   Reply With Quote
Old 07-11-2007, 11:56 AM   #11
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
Quote:
Originally Posted by Sundance
That is excellent!!!! Just what I was picturing in my mind. Thanks a bunch for the great pictures. I hope you don't mind if I pick your brain when I get ready to do mine........
For my part - any time.
GetOutDoors is offline   Reply With Quote
Old 07-11-2007, 12:15 PM   #12
Rivet Master
 
crispyboy's Avatar
 
1994 30' Excella
alexandria , Kentucky
Join Date: Aug 2004
Posts: 2,056
Images: 3
My trailer has the gray polybutalyne piping. I read that this stuff is subject to breaking down due to exposure to chlorine. Since I am replacing the rear floor I went ahead and decided to change the plumbing since it is buried so deeply and I don't want problems down the road.
I am using the pex with Watts fittings. This material is so easy to use a monkey could put it together. What I don't like about the Watts fittings are that they are big and very expensive. I could not locate a crimper that was reasonably priced so I decided to go ahead and use the Watts fittings since I hope this is a one time fix. This is the only place I ever plan on using pex since by code we cannot use it in our houses in this part of the country.

I have not finished my plumbing work so I have no idea if it will lead - I found out that I have to replace more flooring in the front of the trailer. So much for an ebay purchase..... Now that I intimately understand how these trailers are put together maybe I will find a newer one that is wrecked and rebuild it. (The wife is not happy about this idea).
crispyboy is offline   Reply With Quote
Old 07-11-2007, 12:23 PM   #13
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
Two related pictures in my photo gallery.
GetOutDoors is offline   Reply With Quote
Old 07-11-2007, 12:30 PM   #14
3 Rivet Member
 
Devils Lake , North Dakota
Join Date: Mar 2007
Posts: 169
A common misconception on PEX is the lifespan. I think it gets mixed up with polybutalyne piping in some folks minds.

The lifespan of PEX is over 200 years (long beyond my trailering days).

I am surprized that Kentucky does not allow it in homes??? Copper lobby perhaps??
Sundance is offline   Reply With Quote
Old 07-11-2007, 01:40 PM   #15
Rivet Master
 
2005 30' Classic
... , ...
Join Date: Nov 2004
Posts: 512
Images: 12
Found one more pic that might be of interest . . .
Attached Thumbnails
Click image for larger version

Name:	Water&Toilet.JPG
Views:	114
Size:	494.6 KB
ID:	41024  
GetOutDoors is offline   Reply With Quote
Old 07-11-2007, 01:45 PM   #16
3 Rivet Member
 
Devils Lake , North Dakota
Join Date: Mar 2007
Posts: 169
I really like the diamond plate!! nice touch.....
Sundance is offline   Reply With Quote
Old 07-11-2007, 01:59 PM   #17
Rivet Master
 
mandolindave's Avatar
 
Join Date: Mar 2003
Posts: 2,189
Images: 4
Now at Home Depot

I used the " Snake Bite" brand connectors to add an outside faucet to my farmhouse. I will put a few of the staight connectors in my trailer, in case I need to make a patch. You just push the end of the pipe ( PEX or copper ) into the connector. It won't come out without a little two dollar tool.
They claim to be able to handle 200 PSI. I am thinking that water pressure might HELP them seal ( dunno tho ) My ( city Boy ) plumber says that they couldn't cut the high pressure of the city water pressure. Has anyone else used the Snake Bite connectors ?
mandolindave is offline   Reply With Quote
Old 07-11-2007, 02:15 PM   #18
Rivet Master
 
Alumatube's Avatar
 
1984 31' Airstream310
New Holland , Ohio
Join Date: Feb 2007
Posts: 1,085
Do you mean "Shark Bite" connectors? If so, there was a recent topic on them here.

Hope this helps!

Susan
__________________
"Despite the cost of living, have you noticed how popular it remains?"

1984 310 Limited Motor Home "The Rockin' A"
Alumatube is offline   Reply With Quote
Old 07-12-2007, 05:12 PM   #19
Rivet Master
 
Silverhobby's Avatar
 
Vintage Kin Owner
Vintage Kin Owner
Vintage Kin Owner
Currently Looking...
Greeeneville , Tennessee
Join Date: Feb 2005
Posts: 1,301
Send a message via Yahoo to Silverhobby
I Used Sea-Tech and PEX

Having the opportunity to completely redo a 1972 Ambassador 29' was a pleasure using the PEX for plumbing. I highly recommend it too.
__________________
Kevin with Baity the Lab/Pointer
//------AIR # 7303------\\
WBCCI 17109
visit my restoration blog at:
Silverhobby 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
Copper vs. PEX ckeysor Fresh Water Systems 19 07-11-2007 01:03 PM
new water lines Rob Fresh Water Systems 29 07-11-2006 09:25 PM
Towing Experience app Tow Vehicles 9 04-19-2004 10:51 PM
tow vehicles paul k Tow Vehicles 96 01-19-2003 10:59 PM
conversion from vacuum/disk to electric brakes excelladep Brakes & Brake Controllers 2 05-30-2002 12:54 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 02:19 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.