I finally feel like I'm gaining control of my pool. It's taking some time and attention but it's working!!!

We're just maintaining chlorine levels now around 5-7ppm....time for a shock tonight though as there have been lots of swimming with sunscreen, etc., in this heat.

Currently: pH = 7.2 and TA is down to 350 from a whopping 520

The deposits/sandpaper gritty areas are starting to dissolve now....we just keep brushing and they're finally cleaning up.