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05-06-2014, 07:54 PM
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#1
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Senior Member
Join Date: Jul 2012
Location: Burlington, Vermont
Trailer: 2014 17b/ 2012 Chevy Colorado
Posts: 736
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Fresh water system construction
I understand that PEX is used for construction. Are the joints "compression" or "sharkbite" fittings? I have been reading on other forums that the PEX lines and compression fittings can freeze and thaw without damage, but the sharkbite fittings fail.
thanks all
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05-06-2014, 08:08 PM
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#2
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Senior Member
Join Date: Oct 2012
Location: Longview, WA, Washington
Trailer: 2013 Escape 15B - 2014 Nissan Frontier SL
Posts: 854
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ETI uses the compression fittings for the very reasons you mention. Look at the recent posts on toilet leaking and you will see the picture I posted. It makes the toilet mod more difficult because most of us do not have the compression tool.
__________________
Tim and Julie
2013 Escape 15B
2014 Nissan Frontier, Previous 2012 Santa Fe
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05-06-2014, 08:53 PM
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#3
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Senior Member
Join Date: Aug 2012
Location: N/A, Indiana
Trailer: Escape
Posts: 976
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Pex compression ( threaded 3 part) or crimp fittings for joints ?
__________________
"Never argue with an idiot. They only bring you down to their level and beat you with experience." George Carlin
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05-06-2014, 09:35 PM
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#4
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Senior Member
Join Date: Apr 2012
Location: Edmonton, Alberta
Trailer: 2013 19' & 2013 15B
Posts: 2,636
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Quote:
Originally Posted by techfan
ETI uses the compression fittings for the very reasons you mention. Look at the recent posts on toilet leaking and you will see the picture I posted. It makes the toilet mod more difficult because most of us do not have the compression tool.
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You can rent the pex compression/crimper tool at most of the building supply stores around here for about $10/day. I did that about 5 or 6 times before I eventually bought the tool for about $80. Pex is so easy to work with. Anyone with a minimum level of mechanical skills would have no problems at all.
__________________
2013 19' \ 2013 15B, 2020 Toyota 4Runner TRD Offroad
"It is better to remain silent at the risk of being thought a fool, than to talk and remove all doubt of it." - 1907, Maurice Switzer
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05-06-2014, 11:49 PM
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#5
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Senior Member
Join Date: Dec 2012
Location: Edmonton, Alberta
Trailer: 1979 Boler B1700
Posts: 14,935
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Quote:
Originally Posted by yardsale
I understand that PEX is used for construction. Are the joints "compression" or "sharkbite" fittings?
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I think it's pretty rare to find the o-ring sealed fittings (such as Sharkbite) except in repairs and retrofits. Any factory installation (like original building construction) typically uses less expensive, less bulky, and more reliable connections with clamps over barbs (or in the case of some PEX connections now, the PEX is just stretched over a barb); compression fittings are a more expensive but solid option that is used mostly with valves or other fittings that may need to be changed later.
This looks like a decent explanation: PEX Information
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05-07-2014, 02:53 PM
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#6
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Senior Member
Join Date: Jul 2012
Location: Burlington, Vermont
Trailer: 2014 17b/ 2012 Chevy Colorado
Posts: 736
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Good news from my perspective. To satisfy myself, I am going to purchase a small piece with a fitting, then fill with water and place in freezer. Results to follow. My fantasy is that simply draining the fresh water lines will suffice when we plan on being away from the trailer for 4 days at a time next winter.
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05-07-2014, 05:42 PM
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#7
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Senior Member
Join Date: Apr 2013
Location: Cottage Grove, Minnesota
Trailer: 2013 Escape 19
Posts: 365
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What is the best type of connection for a water shut valve in the trailer. I want to add a shut off valve for the toilet?
__________________
John and Brenda
Cottage Grove, MN
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05-07-2014, 05:46 PM
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#8
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Senior Member
Join Date: Oct 2008
Location: Calgary, Alberta
Trailer: 2017 Escape 5.0 TA
Posts: 15,544
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Quote:
Originally Posted by Jrn56
What is the best type of connection for a water shut valve in the trailer. I want to add a shut off valve for the toilet?
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I would use crimp connectors with an inline ball valve.
__________________
2017 Escape 5.0 TA
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln
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05-07-2014, 08:01 PM
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#9
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Senior Member
Join Date: Apr 2013
Location: Cottage Grove, Minnesota
Trailer: 2013 Escape 19
Posts: 365
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Thanks Jim!
__________________
John and Brenda
Cottage Grove, MN
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