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D.E. Filtration. D.E. stands for Diatomaceous Earth and it looks like a very fine powder. If you look at it under a microscope, it looks like a bunch of tiny sponges. Clear water can pass through the openings in those little sponges, but that is about all that can. Debris in the water as small as 3 microns, is trapped trying to pass through the porous D.E. powder. We're talking being able to strain dirt, dust and even algae from the water.
Similar to sand filters, when D.E. filters become dirty, they are cleaned either by backwashing, or regenerating and draining the clogged D.E. to the 'waste' line. To restore filtration, a fresh 'charge' of D.E. is added to the filter.
Hayward Pro-Grid uses superior filter performance to achieve remarkable water clarity, efficient flow and large cleaning capacity for pools of all types and sizes. Pro-Grid filter tanks are constructed of a durable glass-reinforced copolymer, for the ultimate in strength, durability and long life. Featuring “service ease” assembly, Pro-Grid delivers low maintenance and dependable operation. Pro-Grid filters are also available with an optional control valve.
For sparkling, clean pools step up to Hayward D.E. filters.
For more information on how a D.E. Filter Works, click here.