Hello All, I've had a couple of spots on the walls of the block border to my pool that had what looked like heavy calcium "leaking" out. The spots were hard white that ran down the block.
So I put about 6 oz. of muriatic acid in a spray bottle and started at them. Got most of it off.
But then in the afternoon I ran my pool chemistry and had some problems. The CC test had results that were darker red than what was on the scale. I tried to test the calcium hardness to see if that was causing the buildup (and the hair like straw issue), and I was at 100 drops of the third chemical and the water was still not blue (as the test says it should turn).
I'm stumped. The water otherwise is crystal clear. I use a tab feeder for chlorine and shock any time we get significant rains. Temps have been in the 90's.
Thanks for this and all of your help!!