is it just me or are the pool filters different from last year. the top pool on 29 last week was covered with dead wasps and flies and got a sting off of a dead one while swimming through them . cant remember it been like this last year . someone said that theyve changed filters that skim top if they have it needs putting back to how it was . for me the filters should pull in from bottom and top inlets but the top ones now seem to be not working . anybody else ????