floatsonwater
New Member
I developed my fist pin hole leak just after the water meter and before the sediment filter and Kinetico water softener. We are on a community well so for the most part the water is pretty good other than having a hardness around 21. I cut out the section of pipe with the pin hole leak to repair and wonder what this white substance is. This isn't at a joint (see red circle in picture for location) but wonder if this might be excess flux? I noticed some of the other sections in this area are really turning green on the outside so I plan to replace everything in the picture with PEX. I'd like to better understand the root cause though since the house is not that old.