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The oldest and most popular method of filtration is sand. Sand filters share two things in common: When in the filtration mode, water always flows from top to bottom. They all have some sort of lateral or under drain with slots to hold back sand while allowing clean, filtered water to pass through. High-rate sand filters use a special filter sand, normally .45 to .55mm (also known as pool-grade #20 silica sand), because it has sharp edges that serve to separate particles, allowing filtration to take place. They operate on the basis of 'depth' filtration; dirt is driven through the sand bed and trapped in the minute spaces between the particle of sand. Initially, a clean sand bed will remove larger particles, and then, as the bed starts to load up, it will remove finer particles. Cleaning of the media, or sand bed, is accomplished through reversing the flow through the filter, to the 'waste' line. This is known as backwashing.
At Hayward, we're more than just equipment. Our objective is to make your pool experience worry and hassle-free. That's why our equipment is engineered to last and work smart at keeping your pool sparkling clean and trouble free.
For over 80-years, we've been helping pool owners enjoy the pleasures of pool ownership by manufacturing cutting edge, technologically advanced pool equipment worldwide. We strive to ensure that your Totally Hayward System operates at maximum efficiency all season long. Our goal is that at the end of the day, your only concern is to turn your equipment on and off. Whether you are trying to create the perfect backyard environment, reduce operating and maintenance costs through the ease of wireless controls, Hayward is your single source solution. Our products include a complete line of technologically advanced pumps, filters, heaters, heat pumps, automatic pool cleaners, lighting, controls and salt chlorine generators—high-quality components engineered to work together to keep your pool.
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