This has started to come up on my tile all around the pool. Where the water hits the tile, it is shiny; above the water line, it is cloudy looking and not slick. FYI, I always have to add muriatic acid at least once per week to our pool as it usually tests 8.2 range. I also frequently have to add calcium hardness nicreaser. We have a gunite pool with pebble tek, and it is two years old. Water has always been crystal clear. What would cause this? And, how do I get rid of it? Please see attached picture. I tried to take a sideline view as that is how it shows up the most.
Thank you!
Thank you!
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