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De Filter For Inground Pool

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Advantages And Disadvantages Of A De Filter

How to Backwash inground pool de filter


I am very partial to these for several reasons.

  • Remember that a DE filter can filter debris as little as 2â5 microns. DE filters are sometimes known in the pool industry as “water polishers” because of the micron count.
  • DE filters in my opinion are the best filter. If I had a small residential pool, my choice would be the cartridge filter because of the simple maintenance but a DE filter is amazing when trying to clear a cloudy pool. These filters capture everything. Unfortunately there are a few disadvantages to these filters as a homeowner.


  • High maintenance. The grids inside the filter will not last forever. They will need replaced every 2â3 years. You can order the grids online though and do it yourself for less than half the cost. Not very difficult to do the replacement.
  • The DE filter needs to be taken apart normally once every 6 months to a year to rinse off the built up DE powder that normal backwashing will not get rid of.
  • Grids will get holes in them after time allowing DE powder to shoot back to the pool. A new DE filter will exceed the cost of a new cartridge filter.

You may want to visit my article “How to clean and repair DE filter grids.”

Best For Above Ground Pools: Carvin Laser 225

Use a pool filter with sand to filter your way to cleaner, clearer water in your above ground pool. The Carvin Laser Sand Filter relies on naturally abrasive sand as a filter media to keep your pool sparkling. The system draws water evenly across the surface of the deep bed of sand in the filter tank, allowing for higher flow rates, better filtering, and more efficient backwashing. The pump is also equipped with a 7-way valve that can easily be adjusted for functions like filtration, backwashing, rinsing, draining, winterizing, and more.

Like all sand pool filters, it will require occasional backwashing and the sand will need to be replaced about every 5 years. However, this above ground pool filter can keep up with pools up to 21,000 gallons in size.

In The Swim Knowledge Pool: In

Filters for In-Ground Pools

In-ground pool filters are essential pool equipment to remove contaminants and particles on a daily basis to keep your pool clean and crystal clear. A good pool filter makes a pool easier to maintain, and also helps ensure a healthy swimming environment by removing potentially harmful pathogens. In The Swim offers a full line of in-ground pool filters from Jandy, Pentair. The most popular filters for in-ground pools are found here, at affordable and attractive pricing.


Diatomaceous Earth filters are the best possible filtration method, removing particles of 2-4 microns in size. Filter powder is added through the skimmer to coat the DE filter grids, which is backwashed out and replaced every 3-6 weeks. In-ground pool DE filters include the Pentair FNS Plus DE filters. In-ground DE filters provide such effective filtration, you may be able to run the pump less and use fewer chemicals.

Cartridge filters use a pleated polyester cartridge that traps particles of 10-20 microns in size. Cartridge pool filters have a simple design with very few parts, and also have the lowest resistance or back-pressure of all filter types. In-ground pool cartridge filters include the Jandy CV filter and the Pentair Clean & Clear. In-ground cartridge filters are available in large sizes that can go an entire season between cleanings!

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Choosing A Filter System

In selecting a filter for your pool, there is a lot to consider. So before we review some of the best pool filters for in-ground pools, lets quickly discuss some of the most critical issues. After the reviews, well have a more in-depth discussion of each filter type. Well also cover maintenance issues and algae control.

Does filter size matter?

Filter size does matter. This is one of those times when spending a little more makes a lot of sense. Buy a filter thats larger than you think you need, as big as you can afford. A larger filter has a bigger filter area that makes it more efficient. It filters better and traps more dirt in a shorter amount of time, so you save on pump running costs. Its also more effective for a longer period before it needs a clean out, so it saves money through reduced chemical usage and less wastewater. It also saves time and effort, requiring less service and maintenance. When things go wrong, the larger filter will restore water clarity much faster than a smaller pool filter.

Sand filter sizing

The best size sand pool filter for an inground pool over 20,000 gallons is one with at least a 30-inch diameter tank. It offers 4.9 square feet of filter surface area. For smaller pools, you may go one size down. But never go smaller than a 24 to 27-inch diameter tank for an inground pool.

Sizing D.E. filters

Sizing Cartridge filters

Sand Filter : 24 / 62 GPM Hayward S244T ProSeries Sand Filter

Fiberglass reinforced is it worth it?

Choose A Filter To Match Your Pool Type And Size

Hayward Perflex Ec75 Inground Swimming Pool De ...

The pool filter and pool pump go hand in hand to act as the filtration system in your pool, circulating and cleaning the water to keep it free of harmful bacteria and dirt. When purchasing a pool filter, make sure that the filter you choose is sized properly for your pool pump and your swimming pool. A pool pump for a large pool with a higher flow rate pumps more gallons per minute and will function properly with a larger pool filter. Smaller pool pumps for smaller pools should be paired with smaller pool filters. A popular option for many above ground pools is to purchase a combination pump and filter that includes all of the pipes and fittings needed for installation.

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How To Get Sparkling Clean Pool Water

For sparkling water, we need a few things working together in harmony. The pool chemicals must be balanced, filtration must be good, the pool must be cleaned daily, surface skimming must be effective, and the water must circulate for long enough. If one of these requirements is lacking, the water will not sparkle. If you do all this and find that the pool is still lacking that sparkle, you may have a filter problem or a pump that does not match your filter or pool size.

So, lets eliminate the pump, as I explained previously its possible that the filter is undersized. Use the guidelines we gave you and do your own estimate for a filter size. If its undersized, do yourself a favor and upgrade it. But, while you are busy, look up the specifications of the pool pump as well, its flow rate must be less than the maximum flow rate of the filter you use. If you feel you are not qualified to make this decision, get some help.

Many sand pool filters are installed by a pool owner or builder looking for the cheapest filter and are, therefore, undersized. This ends up costing more money in the long run.

Its not only the size that affects your choice of filter. The amount of debris entering the pool, how often the pool is used and the how diligently the chemical maintenance is done are all important considerations. Dirtier and more active pools need more filtration, therefore, larger filters work better here.

Easyclean De Inground Filter

Clean, Clear Water Without Tools or Hassles

The EasyClean D.E. Inground Filter makes it even easier to enjoy the added water clarity that only D.E. media can deliver. This simple, trouble-free and highly effect filter features a fiberglass-reinforced, chemical-resistant, polypropylene tank with no-tool servicing for easier cleaning.

  • Integrated Continuous High Flow Internal Air Relief *
  • Lock ring with spring-loaded safety latches
  • High Flow Manual Air Relief Valve
  • 1-in. drain and wash out
  • Single-piece base and body design
  • Unionized connections

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Best Pool Filter Type: De Sand Or Cartridge

A properly sized swimming pool filter is the first and most important step to maintaining clean and clear pool water. Pool filters remove dirt and debris, which allows chlorine, bromine or other sanitizer to focus on destroying bacteria.

Check sizing recommendations on whichever filter type you choose and always go bigger if you can afford it an undersized filter will just not be effective. It is always better to buy a larger filter than you need, especially if you are on the fence between two sizes.

There are three kinds of pool filters: sand, cartridge and DE . All three are capable of properly maintaining the water. There is no one best pool filter for all applications, but many owners have a preference for one over the other. This will help you decide which pool filter type is best for you.

Next Day Delivery Details

How To: Add DE Filter Powder to Your Pool

Dohenys is pleased to offer free next day delivery at no additional charge for orders over $100 to most of the US for all Doheny’s brand chemicals and many of our most popular swimming pool supplies. Next Day Delivery Service does not mean Next Day Air, but simply that your qualifying products will be shipped from the warehouse closest to you resulting in delivery the next day. We do have a shipping charge of only $9.99 for orders under $100.00.

Some details regarding this service:Other than for Pleasant Prairie, Wisconsin, not all products are stocked at all locations and therefore not available for next day delivery. Only those items with a Next Day Delivery designation on the product page can be expected to arrive the next day and orders must be placed by 4 PM CT .

If you reside in the next day delivery area served by our Pleasant Prairie facility, order in-stock products and place your order by 4 PM CT you should receive your order the next day . This applies to products even if they do not have a Next Day Delivery designation.

Because next day delivery is not guaranteed for standard service and residential deliveries are made only Monday through Saturday though Saturday delivery is not guaranteed, there is a chance that our product will not arrive the next day. While we try our best, unexpected demand can cause products to occasionally be out of stock or create a warehouse backlog that also can prevent shipment the day of the order.

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What Is The Best Way To Clean A Pool Filter

Before you buy a pool filter cleaning solution, determine which pool filter you have. The cleaning process is different for each one, though fundamentally, they all involve removing the accumulated dirt and debris.

Backwashing is a common technique used to clean DE and sand pool filters. Instead of pushing water through the filter to capture particles, you reverse the process to flush the contaminants out of the filter.

You cannot clean a cartridge filter by backwashing. The only way to remove the pool debris is by taking the cartridge apart and rinsing it thoroughly .

Hayward Ec50ac Perflex De Filter

Unlike the previously mentioned Hayward DE pool filter, this filter can be used for both above round and in-ground pools of different sizes. There are 3 different models of this filter system available: the EC40AC, EC50AC, and the EC75A. Each model is a different size to be used in smaller or larger pools, according to your pool filter measurements.

This filter works very well to remove tiny particles from your pool water and give you the most beautifully clear water possible. In addition to small particles and debris, this filter system also works to catch algae. It generally manages to catch particles on the first pass through the filter without allowing many to pass by and go back into the pool itself.

The Perflex filter systems uses less resistance so that the use of your water and electricity is more efficient. Its efficient and dependable with reliable cleaning power that will make your pool much cleaner than many other types of filter systems. This is a comparable system to other DE filters available from other brands.

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Pentair 160301 Clean & Clear Plus Cartridge Pool Filter

Designed with the maximum filter surface area to clean your water more quickly and efficiently than other filters, the Pentair Clean & Clear Plus has an effective filter area of 420 square feet. Internal and manual air relief make maintaining good water pressure easy. It filters 150 GPM inside a sturdy, injection-molded tank.

Three Most Commonly Used Pool Filters

Hayward Pro Series 18 Inch Above Ground Pool Sand Filter ...
  • Cartridge Filter – A Cartridge filter is a cylindrical filter that have a pleated filter material in which being pleated, maximizes the square footage of the filter. Cartridge filters can capture debris as small as 10-15 microns. Cartridge filters are the middle of the road as far as debris that can be filtered. They are the easiest to maintain and do a good job keeping the water clear. They need replaced normally about once per year. Cost of a replacement cartridge will vary based on the size, or square footage of the cartridge.
  • Sand Filter – Sand filters extract impurities from the water using sand to collect the debris. Once this debris builds up the filter will need to be backwashed. Basically running the water in the reverse direction through the filter. These can filter debris between 20- 40 Microns, so not quite as good as a cartridge filter. They are very easy to maintain as they need backwashed once every several weeks. The sand will need changed only once every three or four years. They are very heavy and bulky though.
  • DE Filter – Or “Diatomaceous Earth” This filter contains grids inside that are coated with DE powder, a filter media in which mined and fossilized exoskeletons of tiny diatoms are used in a powder form to coat the grids. This is backwashed similar to the sand filter, but unlike just backwashing alone, the filter always needs fresh DE powder added. A DE filter can trap debris as small as 2-5 microns.
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    When To Replace A Pool Filter

    Replacing a pool filter is not something that you can really schedule. Although there will come a point when it is better to replace a filter than to keep cleaning it, it is more about the condition of the filter and its ability to keep your pool clean. If your current filter isnt keeping up with the work or if it has died completely, you will want to do a full replacement. You can also consult a pool tech to determine the state of your filter and when it may need to be replaced.

    Signs it may be time to replace your pool filter include:

    • Obvious debris or particles in the pool that should be captured by the filtration system.
    • Having to clean the filter or the pool more frequently than normal.
    • A spike in PSI on your pressure gauge could indicate a clogged or faulty filter that needs to be replaced.
    • Changes or inconsistencies in pool chemical levels, such as pH balance.
    • If the filter is obviously broken or in disrepair.

    Pentair 160301 Clean & Clear Pool Filter

    This Pentair residential cartridge pool filter system is made with 420 square-foot filter capacity. Its great for collecting a large amount of dirt and smaller particles in between cleanings without impacting the overall performance of the filter.

    The larger pool cartridge capacity helps to reduce the frequency of cartridge cleanings necessary to maintain a clean pool. If you have an overhanging tree or any other source of a lot of debris, you may still need to empty it out more often.

    However, the average pool owner will probably only need to clean the cartridge once or twice a month at most. This is a great convenience for low-maintenance pool management.

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    How Much Does It Cost To Clean A Pool Filter

    If there is not a need for a full replacement, you may be able to get your pool filter cleaned. Routine cleaning may be required for some filters, usually in 3-6 month intervals. You will also know that it is time to clean when your pressure gauge hits 8-10 PSI higher than where it should be operating. When performing your pool maintenance, see what issues you are having with filtration and perform a visual inspection of your filter system. If your filter has not yet reached its life expectancy but isnt working as efficiently, a cleaning may be all that you need.

    Regular cleaning can help keep your filter in good condition and give you more life out of it. On average, you can expect to spend between $60-65 for regular filter cleaning. In the event that you need more intensive cleaning, it could cost between $60 and $125 per hour.

    Maintenance And Cleaning Of Pool Filters

    How to backwash a DE filter pool

    A properly maintained pool filter ensures clean pool water. It is thus of the utmost importance that your pool filter is cleaned regularly.

    The thing is a filter that works properly filters your pool water and collects any debris. After a while, however, this debris gets caught up in the filter and clogs it up. It also tends to increase your water pressure. This results in a reduced water flow, cloudy water, bad water circulation, and excessive wear and tear on your pool equipment.

    The frequency at which cleaning is needed depends on the pool size, filter, and situation of the pool. For example, a pool that gets leaves blown into it regularly may need more frequent cleaning of the filter. So while some people may need to clean their filters once a season, others may need to do so on a weekly basis.

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