If your skimmer is on the UPWIND side of your pool, with respect to the prevailing wind direction . . . the only complete fix is to move the skimmer. (SORRY!)

Another common problem is that the weir (floaty or flappy thing) inside your skimmer is missing or broken. That can make a BIG difference.

Yet another is insufficient flow through your skimmer, to actually pull surface film into the skimmer.

Adjusting eyeballs to improve flow can also help, but if you get a circular current going, make sure it's not so fast it sweeps everything right past the skimmer.

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