Hello all, purchased a home with a pool in January. First time pool owner trying to get as much knowledge as I can to keep the pool in great condition. Brushing and skimming every day, purchased a pentair rebel vacuum which helps a lot. Looking to get knowledge on chemicals and hope to get more familiar with my equipment. Currently have a Pentair Intelliflo Variable Speed Pump with Pentair DE Filter. Not quite sure the model of my heater. Pool size is about 25x12 with 3ft-6ft deep and attached Spa. Currently have pool service maintenance but hope to be able to do it myself at some point.