This page will show you how to select a pump that filters all the water in your pool in 8 hours. Super Pro 80960BU Pool Spa Filter Water Pressure Gauge, 0-60 PSI, Bottom Designed for in-ground pools and spas of all types and sizes, Super Pump . . 1-1/2-Horsepower Above-Ground Pool Pump with Cord : Swimming Pool Water Pumps : Garden & Outdoor. . Size: 1.5 Horsepower Style: Regular Cord. Pool Pump Sizing is important and will save you money by finding the best and most affordable pump through proper calculation. How much resistance will this water meet while moving thru the system. (Friction Loss)?. 4. How will we overcome this resistance (Pump Sizing)?. 5. How can we .