Morning, I live in southern NH which barely has a spring; we are going from 40's to upper 60's and my water is still around 52 degrees. I was hoping to be pro-active and wondered, can I bring out my motor and hook up all the tubes, fill the water to mid-skimmer and be more prepared when the temperature of the H2O gets around 60? Also don't want to open too early so as to avoid the pollen and little flying things that fall off trees. One last question, this is my first time hooking up the motor, filter and tubes myself; how do I get the sand filter filled with H2O? Does it fill automatically when the H2O is at the correct level? Just imagining turning on the motor and everything blowing up!