Determining water quality
I ran a bath in my new apartment and the water came out blue. The internet told me this was most likely copper corrosion but when I did a water quality test, the copper results were within normal range. The pH level was unusually low, though. How does this square? Are there any other possible explanations for the blue color? And should I be worried about the low pH and why?
I let my landlord know about it and he is looking into a few possible things, but for my own peace of mind, I would like to do a little detective work myself.