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Boosting Efficiency of Sand Filter: D.E Filtering Agent

Updated on July 28, 2016
Barack James profile image

Barack is a chemical engineer with a knack for pool chemistry. He has been in the pool maintenance industry for 8 years.

Boosting Efficiency of Sand Filter
Boosting Efficiency of Sand Filter | Source

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Boosting Efficiency of Sand Filter using D.E Filtering Agent

Ideally, there are three types of pool filters available in the market today: Each pool filter comes with its pro and cons.

Sand filter is the most common type of filter depending on needs of the buyers and pool owners: One possible reason why sand filter is common is because of the price when compared to the D.E filter.

Another possible reason may be because it is not difficult and costly to maintain as compared to the D.E filter: Not everyone can afford D.E filter and its high maintenance cost.

Cartridge filter on the other hand is not the favorite option for lots of people due to low efficiency level, and the need to frequently replace the cartridge filtering materials.

The sand that is used as the filtering agent in the sand filter have sharp edges; which make them efficient in filtering dirt off the pool water.

As the sand agents are used, these edges wear out and the sand get inefficient in filtering overtime; and they need to be replaced after a given period; most likely 5 years for home pools and 2-3 years for public pools.

Most pool managers or pool owner use different agents to boost efficiency of sand filter, have a reduced backwash times, and to increase lifespan of the sand filter.

This post shows you how you can use D.E filtering agent to boost efficiency of your sand filter, and compares other alternative agents that can be used to replace filter sand.

I recommend: Swimming Pool Filter: Reviews and Comparisons

Using D.E Filtering Agent in a Sand Filter

Most common types of sand filter alternative agents with higher efficiency as compared to sand filter include; Glass, ZeoSand, and now D.E filtering agent.

However, I have tried most of these at one point in time, but still I cannot compare any of them with the D.E filtering agent when it comes to boosting efficiency of the sand filters.

Moreover, the other downside of these alternative compared to D.E agent is the price factor; the D.E agent is relatively affordable and more effective in filtering.

We all know that D.E filter is the most efficient pool filter on the planet: D.E filter can filter down to 5 to 8 micron; while Sand filter can filter down to 30 microns.

The D. E can filter down to that level due the filtering agent used with the filter. So, that is the trick.

Step 1: Turn on the filter while the pump is running and note the pressure reading before doing anything.

Step 2: Mix 1/4 cut of D.E agent with water in a bucket and then pour it slowly into the skimmer. Ensure that you remove any skimmer shock if available before adding the D.E agent.

Step 3: Leave for about 2 minutes

Step 4: Note the pressure on the filter again; if the pressure has not gone up by 1 PSI,repeat the second and third step till it does.This will take approximately 1-2 cups of D.E agent.

Since the effeciency of the filter is improved and it may catch many fine particles; consequently increasing filters pressure, it is important to watch over the changes in pressure due that effect.

Filter Glass

Filter glass is one of the most efficient sand filter used today due to its efficiency over filter sand.

Filter glass can filter down to 5 microns, unlike filter sand which can filter down to 30 microns only.

Moreover, filter sand is relatively bulky since the amount needed is much more than the amount needed for filter glass; which may tranlate to around 20% less media in weight compared to filter sand used in the same filter.

Finally, filter sand wear out very soon as compared to filter glass, which is durable and can last 3 times longer than the filter sand.

ZeoSand Agent

Ulike real filter sand, ZeoSand agent filter down to much lower than 30 microns. Swimming pool managers like this filter agent because of its efficiency over filter sand and durablity, which goes for 5 years.

ZeoSand has a decreased backwash times as compared to the sand filter; and small quantity is needed too compared to filter sand in the same filter.


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    • Barack James profile imageAUTHOR

      Barack James 

      9 months ago from Green City in the Sun

      Hi, if the water is stagnant and clean means the zeolite is not used and can still work to filter your pool water. You may have to replace it if the water pool remains cloudy or dirt.

    • profile image


      9 months ago

      Looking for some info on a caring for a pool filter with zeolite.

      I installed a sand filter last year on a converted above ground agriculture cement tank that's now a pool. I chose Zeolite over sand,

      Due to medical reasons I had to leave the camp for several months. Upon my return I discovered that the filter had been taken down and stored in a shed - full of water. My question is if this zeolite media is still good to use after standing in water for approximately 7 months.


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