Hi Everyone. I am new to the pool world, only having our pool for about 1.5 months. I am trying to fine tune the VSP in order to get the lowest RPM with decent skimming. Is it possible/okay/acceptable to close some of the main drain suction, maybe to 50% in order to boost skimming suction? From what I understand, although the main drain does create suction, it is more designed to circulate the water/chemicals. What is everyones thoughts on adjusting the drain values in this situation? Thank you!