Troubleshooting Your Hayward D.E. Filter

Will backwashing or regenerating my D.E. filter thoroughly clean my filter?
No, you must thoroughly clean the elements at least once a year. You can clean your filter elements using automatic dishwasher detergent. Remove the elements from the filter, according to the instructions in your Owner’s Guide, and hose them off with a forceful stream [...]

D.E. Filters

Diatomaceous earth is a porous powder with microscopic openings that when magnified look like tiny sponges. Clear water can pass through these openings, but particles, as small as two to five microns, are trapped during the first pass through the media. D.E. filters have internal elements that become coated with D.E. It is this ‘filter [...]