As a former educator on water conservation, issues and water quality, I am curious why there was no mention of the possibility of water softening systems as an additional potential source of the discoloration? (article July 5, 1A)
Surface water, also called “soft” or “aggressive” water, is often treated and/or blended to reduce its corrosive nature. When subjected to a water softening process it regains the ability to further corrode and leech materials from many pipes and fittings. As I recall, one method of testing for this was to fill a clear glass with water from an outdoor fixture and compare it with another that was filled from an indoor faucet filled with water that had passed through the softener.
It appears that there are more factors at play in the search for solutions. I am wondering why this component was omitted from the article and the city’s FAQ.
Dave Williams, Fresno