Looking for contractors to repipe my house (72 yo galvanized), the first two I contacted are not taking new work because they are booked out too far - one of them does only repiping. That likely means the contractors I do find are likely to be less experienced at this work and I will likely pay a supply/demand premium.

Researching repiping in old posts today, I came across a comment from Packy with a picture of a galvanized pipe compression coupling that gave me an idea. There is no urgency to do this job* so I could wait a year or two, until the market cools, IF I was confident I could repair a leak in the galvanized. Based on simple DIY plumbing I have done in the past, my best bet would be if I could plan to replace the leaking section using a coupling on each end and PEX in the middle. My question is, how do I transition from the galvanized coupling to PEX? Thanks.

Tom

*Not leaking now and I am not worried about an undiscovered leak in the crawl space; I have a Flume water monitor so I know about even a drip pretty quickly.

you don't tell us what size you need.
they do make "dresser" couplings that are IPS x CTS.
iron pipe on one end and copper tubing on the other.
pex OD is CTS OD

Bering that pex is not rigid and tends to flex I can’t see the dresser coupling being a viable option with pex seems like it may just blow apart under pressure, copper may be a better option

Can you just cut the pipe with a saw and unscrew at both ends, then install 2 male pex adapters with pex piping in between

Thanks Packy and Bsipps. First, dang, of course I should have said that my pipe is 3/4. Second, while at HD today for another problem I figured out a solution that I will have more confidence in. I will have on hand two repair couplings, a 3/4 galvanized nipple, and a length of ,braided stainless steel water heater connector. I can cut out the leak, cut the nipple in half, install a coupling with half nipple on each end, then join them with the connector.

I have never had any success trying to unscrew old corroded galvanized iron piping used for water. Either the male thread breaks or the fitting gets crushed by the pipe wrench.

Tom the Elder said:

>I can cut out the leak

When I replaced leaky galvanized in my house, it invariably resembled crumbly foil filled with rusty crud. You may not be able to find sound pipe near a leak to cut or patch.