I've been battling my pool all summer long. I have an Intex rectangular pool 12 x 24 (roughly 8,500 gallons). I recently purchased the TF-100 test kit and found out that I had way too much CYA which apparently helped contribute to the water not being clear. Several days ago, I replaced a good portion of the water to get it down to about 50 ppm, but I'm still having issues. About a day or so ago, I put in the appropriate amount of "no more green" (Acid Dihydrate, diammonium sulfate) to help with the algae. Here are my numbers based on tests this morning:
Chlorine Drop Test
Free Chlorine 2ppm
Total Chlorine 1.5
Any help would be greatly appreciated!
One of the other things is that I keep having to clean my cartridge filter, which I didn't have to do last year. I have a 3/4 hp pump with a 25 sq ft cartridge filter.