Originally Posted by J-Mech (Post 448300)

I'm not arguing....
But I've seen just about as many copper lines that didn't get soldered right as I have PVC fittings that didn't get glued right. Seen copper come apart, seen PVC come apart. One time, I saw a 90° copper elbow blow the outside corner, because the plumber didn't deburr the pipe after cutting. It was on a hot water circulation line, and the rolled edge caused cavitation to orrur in the elbow, eroding it out. That was a new one for me....
I've also seen pex fittings blow off, iron and galvanized rot out..... so, they all have issues one way or another, lol.

Originally Posted by taylorjm (Post 448303)

They sure do all have their pluses and minuses. Had a 90 blow off on a circulation line? Like, a boiler with a whole 15psi on it or a high pressure boiler?

Originally Posted by J-Mech (Post 448305)

No, the 90 didn't come off, the elbow eroded out and it sprung a huge gushing leak.
It was on a hot water line, as in hot water, not cold. House was huge, so the hot lines ran a circulation pump back to the tank to keep hot water in them at all times. No waiting for hot water that way. Only had to travel from the already warm line up the wall to the fixture. :beerchug: