My son came in from swimming last night and said there were floating white specks in the water. I did an OCLT last night and this morning before the sun was on it, had a 0.5 FC loss and 0 CC. Is that acceptable or do I need to do a SLAM? I looked at the pool last night and today, didn't see any specks. I do have a problem with pollen and flying ants getting in it, though.