I would like your opinion about my algae situation. I pass the OCLT (FC was 5 last night and 4.5 this morning), my water is clear, and my CC is 0. But I have algae on the walls and creases in places where my pool robot misses. Any suggestions? My current numbers are: FC 4.5, CC 0, pH 7.8, TA 90, CH 100, CYA 40.
Here is some background. Mid April I SLAMed the pool. Then put Triclor in the feeder because we were going to be out of town for several weeks. When we came back we had some algae but we had also had tons of rain so I figured the chlorine just didn't keep up. So I shocked (not SLAM) the pool. All was well for a week and then the algae came back. So I guess I need to SLAM again but I don't understand why my numbers are spot on but I have algae.