Sam's club pro series 20x 48 8000gal pool. It is our first pool. We are brand new to this so please be patient. As I'm sure you know the pump that comes with the pool is total junk. I would like to upgrade to a better pump/filter but don't even know where to begin. For you guys that have done this can you PLEASE tell me what to buy. Please include names and part numbers if possible with all fittings and adapters I will need. Basically please list EVERYTHING I will need start to finsh. The simplest best most cost efficient way. Thanks in advance.