I'm starting a new thread so nobody has to read thru all of the old trials and tribulations...
Had a pool for 25 years and never had algae problems before. The third time it happened this year I found this site. Bought the recommended kit, did the slam, etc, etc. Switched to grocery store high strength bleach. The pool was crystal clear for more than a week, but now its back.
The slam was by YOUR procedure. Had the FC wayyy above the slam target. The FC went down 0 or 1 for 5 days straight. One day it even went up one. Then I let the FC drop. It took almost 2 weeks to drop to the target. Then I started using store bleach and maintained it at target every single day.
Friday I noticed a hint of cloudyness, but no green. We went away for the weekend so Sat morning I added what I figured would be 3 days of bleach and a little clarifier. Sure enough we come back Mon and the FC is still OK, but the pool turned green.
FC = 7
CYA = 60
Cc = 0
pH = 7.5
TA = 100
Obviously, I'm doing something wrong. Where do I look next?