Hi guys. Gonna be in our pool for the very first official swim today! Very exciting for us! I've got a question, though, about everyday use of my skimmer and main drains. I have one skimmer and one (double) main drain. They are plumbed completely seperately on 2" lines and "tee" together before going to the pump. I installed 2" manual ball valves for shut offs on each of those lines. For everyday filtration and circulation, should I leave them both completely open, or keep the main drain closed completely...or try some combination of the 2? As always, I really appreciate any advice and suggestions!