Repipe our house with pex-a/Uponor


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Old 06-13-21, 04:59 PM
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Repipe our house with pex-a/Uponor

For anyone who willingly and constructively helps me out, I thank you in advance.

I am a 56-year-old avowed DIYer. I have kept my car running for 23 years and 300k miles, and fixed or renovated various electrical, plumbing, and structural systems and/or appliances. I am also a teacher, so I've got the month of July to repipe our house.

My plan is to pull a permit (Catawba Co, NC), remove all the 70+ year old galvanized and 35 year old copper configured in a mostly haphazard trunk and branch system, and replace it all with pex-a (Uponor/Wirsbo). My intention is to run pex all the way from the meter (3/4" pipe) and implement the Uponor Logic plumbing approach as opposed to trunk and branch or Home Run (Uponor Logic ). Our home was stick-built in 1948 and is set atop a full basement in portions with lots of crawl space in the rest. There is one full bath that sits between a laundry area and a full kitchen on the main level of the house; there is a full bath upstairs with reasonable access to its plumbing.

I have done two repairs with pex-a and compression fittings to copper. I like the ease of pex-a and the Uponor expansion tool. I also have good deal of experience installing sinks, dishwashers, and water heaters in our different homes over the years. In short, I believe this is a project I can do.

I want to put together a plan so I have more confidence and an idea on the cost. I could really use some help on getting started on pipe sizing.

My issue right now is knowing where to start. I don't have the experience to know pipe sizing, and I'm feeling a little intimidated on how to get going. So, I'm putting it out to the hive mind.

How do I figure out how to size piping (so I know what lengths and diameters to order) to get from the meter to the fixtures throughout our house?
 
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Old 06-13-21, 07:09 PM
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Welcome to the forums.

I have a 1999 Ford E-350 van. It has close to 500k miles on it. It's a diesel and still running.
It's down this week as a suspension part rusted out.

I'm not a plumber but I favor the dedicated lines from a common supply.
I like the PEX being run with no couplings or fittings in the wall other than at the fixtures.
That would require 1/2" PEX. A roll of red and a roll of blue. No pre-measurements needed.
 
 

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