That's the color of corroded copper tubing. What does it look like in a clear glass instead of this blue?
Then something may be casting a blue tint reflection on the glass because I see blue above the water in the glass, especially on the left side and front of the glass. Try a clear smooth sided glass.That is a clear glass, the water has the same turquoise tint.
i don't know the ph. maybe i can have it checked at my pool supply place...
if it is copper pipe corrosion, wouldn't it have shown in the water when i put the water in the glass from the faucet? once the foam went away, the water appeared clear until i let it sit overnight.
This is awkward, but...
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