Piping

ChrisJ

Jamie Hall said:

BruceLundeen said:

Good information about pipe. But nobody said something that I don't do but see all the time. Don't be putting a quick-fix copper pipe into a steam or hot water system. We think that brings down the whole system by causing electrolytic corrosion.

There are places where it's no problem -- I wouldn't hesitate to use copper on a wet return, for instance. Usually the problem with copper on steam is not allowing for expansion, rather than corrosion problems.

Not allowing for expansion and lousy solder joints because whoever is doing it doesn't have the tools and or skill to solder 2 to 3" copper pipe.

Jamie Hall

@AlfredRose -- your post would have been MUCH better as a new thread.

ChrisJ

Jamie Hall said:

All I can say about black iron -- old -- and galvanized steel for piping is that I have had to replace every inch of galvanized steel pipe in the properties I maintain because it rusted shut or nearly so on the inside, making it somewhat useless as a pipe... whereas the black iron piping in the same properties has been in place for over a century, and the only leaks I've had were where it was in contact with mortar or in one place where a threaded joint developed a drip.

There were a few sections of 1/2 galv pipe I pulled out of the bathroom that weren't in use since the 1950s and I suspect were installed in 1910 along with a section of lead drain pipe and those galv pipes were also full of rust and minerals.

So..... Were those iron or steel from 1910?

reggi

Jamie Hall said:

@AlfredRose -- your post would have been MUCH better as a new thread.

Wasn't he the OP ? ☺️