My sand filter has been empty all winter and I was wondering if I need prime it before I start the pump. I have never started my pool myself so this is new. I drained it and disconnected all the hoses. just some advice on starting would be great! water is clear but there is some sediment at the bottom of the pool. cleared the small amount of leaves I had in there out. pool was covered all winter. gonna add some water to the bottom of the skimmer then test to see where she is sitting chemical wise.