Is there a preferred skimmer diverter plate flap position? I’ve been leaving mine fully open. If fully open will any water be pulled from the main drain? It seems like some sort of ratio between floor drain & skimmer would be preferred. Maybe leaving the flap 3/4 open? If you ran without one would the pump pull an equal amount from both inputs or since the main drain water has to be pulled up maybe not an even split? For reference I haven’t had trouble with the pool, just trying to understand it better. There’s no in floor cleaner or vacuum system in pool, just one drain & one skimmer. Thanks.