I will apologize upfront, I have read and reread, did the pool calculator and followed the instructions on the Taylor-2006 on youtube,I reran each test in case I screwed it up. I have trouble understanding and reading because of Lyme disease, but I want to get the pool right. I am confused.
I have a 24 x 54 round metal pool with vinyl liner. The pool sits in direct sunlight all day. I have a solar cover but have never used it. I have a sand filter with 2 year old sand.
My current number are
CC- .04 ppm (2 drops x .02
PH - 7.5
TH - 300 ppm
CYA -black dot did not vanish so my understanding is that it would be less than 20 pp.
We had a bad algae problem last year so we have purchased a SWG, added the salt but I can't get the chlorine to hold at any consistent level. If I read correctly it is because I have no CYA?? I have 24 lbs of 65% bagged chlorine, a box of borax, a box of baking soda all on hand.
Do I need to go buy stabilizer? I am guessing that is from a pool store.
If anyone has any advice at all, I would greatly appreciate it. Sorry about this, I really did try to understand. Obviously I need a chemistry class