I got a late start opening the pool this year..well, let me correct that. I kept it open all winter, and it was clear all winter, then when it first got warm, our pump had to be repaired. Seven days no pump= swamp. So I started dumping bleach in, waiting for my test kit refills. Tested tonight, and here are the scary numbers:
CYA: 0 (I filled the tube up all the way to the top and good still see the dot clear as day)
CH: didn't test (vinyl)
So, I've done the pool calculator and know what I need to add...but can someone please remind me the easiest and best way to raise the CYA to 40? And that's BEFORE I add more bleach, right?
Thanks! It's 95 here this weekend, and my kids are rioting.