I am about to replace my water heater. My house has galvanized pipe
throughout so I am reluctant to use flex copper connectors for fear of
increased corrosion problems. I am thinking of using flexible stainless
steel connectors that I saw at Home Depot and am wondering if there is
a downside to using stainless steel? HD has a kit that includes two 18"
stainless water connectors and one flexible stainless steel gas
connector. Thanks for any comments on this.
I assumed the water heater will have galvanized nipples on top so
everything would be compatible. Are they copper? If so, then I would
need to use copper connectors with di-electric unions between the
copper connectors and the galvanized house pipe. Is this correct?
Stainless to non-stainless may present a problem.
Nuts and such that are not wet don't matter.
I would just use the dielectric unions. They don't cost much, and having a
union fitting is a mechanical plus.
My house is about 40 years old and I've had a couple of problems with
the hot water line. A joint failed just above the water heater several
years ago and a pinhole leak developed in the vertical run in the wall
behind the water heater. There is also a lot of mineral buildup in the
pipes. I don't want to do anything likely to make things worse. I don't
want to have to re-pipe the entire house.
This is strange. I was out of town last weekend and turned the water
supply off. When I turned the water back on Sunday night, the leak had
stopped. A bit of mineral deposit probably got in the hole so I realize
I'm on borrowed time.
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