Thought everything was good. was passing the OCLT till last night. FC dropped by 4. I took off the light fixtures and sure enough... lots of algae. scrubbed em clean, so it was easy to remove. took the lights out and sat them on the side to dry out. neither light works and have water in them... guess the rubber seals have finally failed. it is a 20 year old pool.
guess i need to slam... but since i was able to scrub em out and it isn't sticking.... makes me wonder?? to be safe i guess i should... but maybe will try to pass the OCLT tonight and slam tomorrow... as the bottom sucker and filter will take the loose stuff out out soon enough.