Pollen, little bugs, etc on the surface of water ...


Well-known member
Apr 18, 2010
Hello All,
i'm all about q's this am.
we have 2 mains and 2 skimmers.....
right now i have all 4 active. is it a fair hypothesis that closing the mains for a while would make the skimmers more powerful and remove more of the surface debris?
typically, do people keey all open and periodically adjust or keep skimmers open/mains closed?