I had to drop the pool level about 12" or so last night, so the patio builder could finish the last item today, which was to caulk the gap between the coping stones and the liner joint. I've been filling with my tap water since 4pm, and I'm just about there. Another hr or so and I should be where I want it. My tap water is a public utility that pulls its water from deep bedrock wells. It is treated for safety and all that but I'm not sure what the mineral/metal content is like. I noticed a greenish tint before the sun went down (that doesn't look like algae does), so I'm assuming maybe copper? I will get a new set of test results, and search on this to see what I can find out, but hopefully it's not too bad.
Any advice? Is there a way I can test for metals with the TF-100 kit? Thanks.