14000G plaster in ground pool. Intelliflow VS pump runs at 2100RPM from 8am to 9pm. Cartridge filter. Use TF100 (new test kit as of July).
Went away on vacation and pool sitter let it get a little green. I SLAMed the pool two weeks ago when I got back and things were fine, but this week noticed a little green on the side in the corner. Chemistry is good:
FC 7 (I have been keeping this a little high since the SLAM)
ph 7.5 (there is about average, but this is where it was this morning)
Maybe I need to clean the filter better? Seems strange to get algae with the chlorine level above 7.