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Old 02-23-2020, 12:35 PM   #21
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1968 26' Overlander
Green Cove Springs , Florida
Join Date: Mar 2019
Posts: 5
PEX is great. That being said, here are my AHA moments:

Use the clamps and the special tool to clamp the PEX to fittings. DON'T use the copper crimp rings. If you crimp the copper and it leaks or if you decide to change the fitting, you have to cut the PEX and throw out that fitting, because the copper can't be pryed off.

Test your lines before you cover them up and use as few fittings as you can. This seems self-explanatory, but easy to overlook in the excitement.

Bending the PEX and using one of the "bend holders" will help maintain better flow than a crimp-on elbow, and fewer joints.

Buying both blue and red will help you identify lines later on. Obvious, but worth mentioning.

Adding ball valves (never gate valves) will help isolate runs later on if the need arises.

They make PEX fittings to attach to everything, including shower valves, so I would recommend replacing all of your copper rather than attaching to it.

Don't run your PEX in ways that they can leak or run into any electrical or electronic equipment.

Good luck!
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Old 02-23-2020, 12:40 PM   #22
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2007 30' Classic S/O
Somewhere , South Carolina
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I guess many folks are OK with buying special tools to make a small PEX repair. I saved my $$ for other stuff and the required tools are already in my tool box.

Channel lock to set clamp, straight screwdriver to remove clamp. Access in a trailer is tight on a good day.

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Old 02-23-2020, 12:58 PM   #23
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1966 22' Safari
1955 22' Flying Cloud
Fredericksburg , Texas
Join Date: May 2015
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Quote:
Originally Posted by Hemicrazy View Post
Go with Pex A most common brand is Uponor. Invest in the expansion tool, something you will almost certainly use again.
I agree the Milwaukee expansion tool is a bit pricey for the Uponor (Whirsbo), but we thought it worth the cost. We have never had a connection fail. Also, they offer the ProPex pre-insulated if needed. Plus my wife loves to make connections using the expansion tool.
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Old 02-23-2020, 02:02 PM   #24
Aircatdad
 
1973 27' Overlander
Biloxi , Mississippi
Join Date: Mar 2019
Posts: 2
I'd like to piggyback onthis post and ask what type of valve did ya'll use for the low point drain in Pex fittings. Redoing a
'73 Overlander and haven't found these items yet.
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Old 02-23-2020, 03:45 PM   #25
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1968 26' Overlander
Miami , Florida
Join Date: Oct 2014
Posts: 18
Flex CPVC works too..

Nothing against all the PEX rave reviews, and I also appreciate sharkbite connections for inline repairs to copper, pex, cvpc... But when I replaced copper lines on our 68 Overlander, flex cvpc saved me me $$. Glued up fittings that cost 25 cents each vs $7 sharkbite fittings. Easy choice. But I live in Florida and don't worry about frozen pipes.
Just saying, sometimes you need to economize.
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Old 03-13-2020, 02:31 AM   #26
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1966 26' Overlander
Helena , Montana
Join Date: Jan 2012
Posts: 8
Thanks for the observations. The meadowlarks and robins have arrived in Montana, so let the work begin!
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