This exterior total property water conditioner also plays a role in reducing the risk of pinhole leaks in copper plumbing. “Polyps” form on the interior of copper pipe walls, creating active sites that attract chloramines and create excessive turbulence resulting in an attack on the copper. The catalytic conditioner not only stops the growth of the polyps, but it has a detergent action, which draws existing polyps back into solution (effectively dissolving them).
There is an epidemic of pinhole leaks in southern California, prominent in San Clemente (Talega), Ladera Ranch, Laguna Niguel, Aliso Viejo, and most recently Newport Coast. Communities served by Moutlon Niguel, Rancho Santa Margarita, and Irvine Ranch Water Districts Have been plagued with leaks, primarily blamed on the water imported from Metropolitan Water District.
You must remove chloramines and thereby change your water chemistry in order to stop pinhole leaks from occurring or coming back.