DE Pool Filters

Understand DE Pool Filters - Your Swimming Pool Filter System & Swimming Pool Pumps and Filters.

Simply put, diatomaceous earth (DE) are the bones of tiny little animals and plants that lived millions and millions of years ago, diatoms.

DE swimming pool filter systems are the most effective pool filtration available, but on the downside, they also require the highest level of maintenance.

This DE is used to coat the pool filter grids inside the filter which captures and filters particles as small as 5 microns.

When the pressure rises, it is backwashed in the same manner as a sand filter.

 A slurry of diatomaceous earth is put into the skimmer to “recharge” or “re-coat” the grids.

More Filter Pages For You

DE Filter Maintenance - Learn Swimming Pool Pumps and Filters For Cleaning Diatomaceous Earth Pool Filter. 

Sand Filters - Understanding Swimming Pool Sand Filters, Swimming Pool Filter Sand, & Your Pool Filter System. 

Cartridge Filters - Swimming Pool Filter Cartridge Care & Swimming Pool Filters and Pumps for Inground and Above Ground Pool Filter Systems  

Clear Up A Green Pool - DE Pool Filters

A swimming pool DE filter is very effective and efficient but a little more expensive to maintain.

de pool filters,d e pool filters,above ground pool filter systems,diatomaceous earth pool filter

Some call it the “water polisher” of a pool water system filter.


  • DE filter powder is easily stored
  • Gets your water cleaner than either sand filter or cartridge filter
  • Recharged easily by putting the DE in the skimmer
  • Might go longer in between a normal backwash than sand filters
  • Filters particles and debris better than sand or cartridge filter systems


  • Backwashed every 4 weeks or so
  • Uses up to 50-150 gallons or more of water with every backwash for an above ground pool and 250-500 gallons for an inground pool
  • DE must be purchased and stored
  • Filter must be taken apart and the DE filter grids must be cleaned. Cleaning DE filter is not fun.
  • The grids need to be coated with fresh DE with each backwash
de pool filters,d e pool filters,above ground pool filter systems,diatomaceous earth pool filter
de pool filters,d e pool filters,above ground pool filter systems,diatomaceous earth pool filter

Compare Water Filter Systems

So, out of the three, sand, cartridge, or DE swimming pool filters, which is best for you? Thinking about changing to a different one? Well, this all depends on your needs, situation, pool use, cleaning schedule, time investment, financial considerations, etc...

Helpful hints:

  • Want an inexpensive and easily maintained pool filter? Splashing around for fun and it’s just the two of you? Then you may want to consider a sand filter.
  • You require low maintenance and pretty good filtration? The major use is only on the 4th of July and Memorial Day? Then a cartridge filter is the one you might consider.
  • Money and time are of no consideration and you want the cleanest and clearest pool in the neighborhood. You want to throw a dime in the deep end and be able to see what year it was made. Then check out DE pool filters.

It really depends on your wants and needs. Just remember to ask the right questions to get the best pool filter for your swimming pool.

If that happens to be a swimming pool DE filter , then good for you.

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What Other Visitors Have Said

Click below to see contributions from other visitors to this page...

DE Filter Recharge/No Skimmer 
I have searched the internet attempting to find the answer to my question with no luck. I bought a house recently with an inground spa. I need to clean …

Too Much DE filter Pressure It's High & Builds Up DE Back Into The Pool 
We have a DE Inground Pool...Problem is: After running the pump for about 10 minutes, pressure in the DE Filter goes past 20 and the flow out of the …

DE Filter..Low Pressure And No Suction At Skimmer 
I have a DE Filter. Cleaned it, and had the grids checked (they were replaced 7 months ago). New O-Ring on DE Filter, new O-Ring/Lid on in-ground Leaf-Vac, …

How Do I Vacuum remove DE & Low Suction When Vacuuming 
I cannot remove expelled D.E. from the walls and bottom of my pool. Vacuuming only disperses it. With the skimmers shut off, I've tried(many times)to brush …


How Much DE Do I Need Cleaning Pool Bottom & Fingers DE Filter 
After washing panels and putting back together, how much DE powder do your pour into the skimmer basket? Two cups, three cups, 4 cups, 6 cups? My swimming …

Assembly Vertical DE Filter Grids Hayward Pro Grid & Leaks From Bottom Not rated yet
I have a PAC-FAB Nautilus FNS Filter (48 sq ft) and recently needed to disassemble the grid assembly to clean consists of 7 standard grids and …

DE Returning Coming Back To The Pool & Tears In Grids Not rated yet
I recently replaced the DE sand in my swimming pool filter and it seems that a large amount of the sand filter media has ejected back into the pool through …

Swimming Pool De Filter & Ripped Tentacle/Grid Not rated yet
We have been having many problems with our DE swimming pool filter. Our landlord does the winterizing and we question if he does it properly. We have …

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