My pool has 2 pool bottom drains and a surface skimmer. Both bottom drains have the new code approved grates. This is an in-ground 2,500 gallon pool/spa with 16 jets. The pump is 2 HP so there is lots of surface circulation but not enough suction from the skimmer to adequately catch surface debris. I was thinking that some kind of rubber cover placed over the grates might restrict that inlet forcing more section at the skimmer. Any suggestions would be appreciated.