Because of space constraints and a lack of knowledge, most also believe that they can't be . Hayward S166T92S ProSeries 16-Inch 1 HP Sand Filter System. Hayward offers a full line of multiport and slide backwash valves to support our complete line of vertical grid DE and sand filters. Utilized industry wide, Hayward . Perflex Extended-Cycle DE filter and pump systems clean pools fast, removing particles as small as two microns the first time through. Its Flex-Tube design . Hayward 24 Inch Umbrella-Fold Self-Cleaning Pool Sand Filter Side Mount . #Perflex Extended-Cycle D.E. filters clean pools fast, removing particles as small as . Test run some of these innovative ideas for your outdoor living space. Hayward Pro Series Top-Mount Above Ground Pool Sand Filter System with Matrix Extended-Cycle D. filters clean pools fast, removing particles as small as two The electric heaters fit into compact spaces - even under spa skirts or steps. Hayward S244T ProSeries Sand Filter, 24-Inch, Top-Mount at less horsepower than other pumps, so you can run your pump less and save on electricity. . Install was straight forward, only complicated by the tight space in my pool house. Every 5 - 7 years you will have to replace the sand in your sand filter. This unit (Hayward S180T) uses 3 50 lb bags of sand - 150 lbs total. . unit 3 bags should leave at least 6' space between the top of the sand and the top of the filter. But the pressure increases way to much.and the water is leaking out from the top. Pool filter sand often becomes 'mudballed' containing small clumps of oily Most tanks are filled only about 2/3 of the way full, to leave enough 'freeboard' space on top A Hayward sand filter can be used just fine with a Pentair pool pump, .