Andrew Barss wrote:
I had a flood, due to a leaking pipe in my attic crawlspace (brick
house, built 1943, Tucson AZ, pipe likely put in during 1970 kitchen
remodel).

The leak was apparently due to corrosion the plumber attributed to
a mixture someplace in the system of galvanized steel (what leaked)
and copper. I'm trying to decide whether to repipe the whole house,
which is going to be expensive and a pain, or not. My gut tells me
to do it, but thought I'd ask anyone who knows more about plumbing
than I do, especially in this sort of house, for advice on how to
proceed.

Thanks,

Andy Barss

you'd only get the corrosion where the two metals touch.

as soon as you fix that one, you'll get a leak 2 other places.

i'd repipe with pex if i was staying in the place longer than a few months.

regards,
charlie
cave creek, az