This seemed too happen out of no where. It's been clear for months and now all of a sudden it's cloudy and murky. I check the chlorine levels everyday and add as needed. I always keep it at the higher end of the recommended rand. I use bleach. There was a weird film on the bottom around the pool, it was a greenish color (algae?) I've been vacuuming it everyday and I scrubbed the entire thing yesterday. The filter cartridge was green also (I've been cleaning it often now during the SLAM)
The pool is a beltway seasonal pool 12' circle appx 1500 gallons.
Anyhow, so yesterday I started a SLAM. Found my shock level was 20ppm so i've been keeping it at that and checking it every so often. OCLT was about 4ppm from 8:30 last night to 6am today. CC was .5
I checked it this afternoon and the FC was 14ppm and the cc was either 0 or .5, it was too bright to tell.
Rest of the test results are CYA 50, TA 110 and PH 7.5 (Test kit is the TF-100)
Why and how did this happen if my levels were always kept good??