Last test before about 1.5" rain the FC was 3 & CC was 0.4 on the 25ml test PH 7.4. Water is looks very clear to me. The only issue is suspend particals that the are out of reach of the skimer. I'm going to shock the pool Wednesday with about 1.75 gallons of 8% bleach from Kroger. That's all I'm doing because the pool is being drained Monday to see why the sand coving has divots all the way around the pool. I also think Nutgrass is starting to poke through the liner. There are quite s few sharp looking pointed spots poking up from the sand. They eather didn't use Nutgrass killer or didn't use it right. We shall see when the liner is pulled back.