Hello, First time poster here. Been looking at your forum for 2 weeks trying to get some advice...
I have an 18' above ground pool (about 7960 gallons) and we use the pool frog to add chlorine. Since everyone on this forum recommended the K-2006 tester, i ordered one and had it delivered this weekend.
Free Chlorine: <.2 (took 5 little scoops of the reagent to get the smallest tinge of pink, and one drop cleared it right up)
Combined Chlorine: .4
CYA: When dot disappeared, level was between 40-50. Closer to 50, so I am guessing 47
Also, read on here about ammonia, so i picked up a tester from aquarium supplies, i am reading 4 ppm ammonia.
My water is crystal clear, and i have vacuumed and scrubbed the pool sides and bottom. I use a cartridge filter, and i replaced the cartridge this year when we opened the pool. Unfortunately, I was deployed when the wife closed the pool in the fall, so I don't know what the numbers were at closing. When we took the cover off, the water was a little green, but not too bad.
Any advice would be greatly appreciated. My local pool store (splash) has really been no help. They're telling me nothing is wrong. This is the 3rd season we've had the pool, and normally i can run the pool frog at 2, and maintain 2-3 ppm of free chlorine. I have had it set as high as 10 over the past 3 weeks, the little pucks are disolving, but I still read next to zero ppm free chlorine. If i have to partially drain and refill, I am fine with that. Was just looking to see if there was any other way to fix this.
Thanks for your time.