Copper Pipe Corrosion/Erosion
Copper Pipe Corrosion/Erosion
(OP)
I am trying to determine why the copper piping in a residential hot water circulation system failed after only three years. The failure occurred in an elbow just upstream of the recirc pump. (I have photos but don't know how to include them.) I don't believe there is anything unusual in the water, and it does not look like galvanic corrosion.





RE: Copper Pipe Corrosion/Erosion
Possible solutions to the problem: (1) reduce the speed of the fluid flow, (2) use a rubber coating to absorb the impact of the collapsing bubble, (3) go to a stainless steel elbow (but beware of galvanic corrosion).
RE: Copper Pipe Corrosion/Erosion
RE: Copper Pipe Corrosion/Erosion