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Hayward® filters were designed with three things in mind. Simple operation, low maintenance and all-weather performance. By doing this, they set new standards in all three of the filtering technologies available to the residential pool owner for performance, value and dependability.

Cartridge Filtration. This methodology employs an element or elements similar to the air filter in your car. Debris in the water passes through the filter and is trapped by tiny pores in the cartridge(s) within the filter. When the filter elements become dirty, you simply remove the elements from the filter and hose them off. Of course, you can also use some filter cleaning agents to get the cartridges even cleaner. Typically, cartridge filters trap particles as small as 10 – 15 microns in size. The human eye can’t see anything smaller 40 microns.

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.  For more information on how a D.E. Filter Works, click here.

Sand Filtration.  Of the three filtering options available to the residential pool owner, Sand, Cartridge and D.E., sand is probably the most popular of the these. The main reasons for this, they are simple, effective, usually cost less than the other options and require very little maintenance.

The filter canister is filled with sand.  Water enters the top of the filter canister and flows to the bottom through all of the sand. On its way to the bottom of the filter, debris in the water is being trapped within the sand granuales. The clean filtered water exits the bottom of the filer.  Over time, the sand in the filter becomes dirty and requires cleaning. This is done by turning a valve on the filter canister and reversing the direction of the water. This is commonly referred to as backwashing the filter. The debris in the sand is washed out through the waste line. Sand filters typically filter out particles as small as 20 microns in size.

Cartridge Filters
Cartridge Filters
D.E. Filters
D.E. Filters
Sand Filters
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