Filters For Swimming Pools

3 Types of Filters For Swimming Pools

When you are planning for a pool before the phase of construction you should determine the type of filter you would want to use. Each type has its drawbacks and benefits and each has a different price point, useful filter life and unique cleaning aspects. Our pool filters are efficient and feature weather-resistant tanks for years of dependable use.

A swimming pool filter plays a vital role in keeping the water clean and sparkling. It also maintains the pool's hygiene level making it safe for you to swim in. Without a pool filter, dirt and debris will not only make its way into the pool but will also remain in it. And this can lead to health problems for those who use the pool and will also add to the potential for algae growth in the water.

There are many types of swimming pool filters/ filtration system available in the market such as sand, cartridge, and DE (Diatomaceous Earth). The main function of a pool water filter is to trap contaminants and particulates in the water and hold them within the filter. The clean water is then pushed back into the swimming pool. The trapped contaminants are removed by the means of backwashing, which should be done at regular intervals.

The suitability of a filter for a pool can have more to do with the size of the filter, than with the type. Always go at least one size larger than you require.

1. Cartridge Pool Filters:
It is one of the best choices for small ground or above ground pools and spas with small water volume to turn over. Filter cartridges are normally made from spun polyester. There is no backwash system for cartridge filters. The filters should be cleaned at least every four to six months. Ideally, when the clean pressure gauge increases its reading more than 8-10 lbs or (0.5 - 0.6 Bar) it is time to clean the cartridge.

The process is easy, all one has to do is remove and flush down the cartridge with a garden hose. Let the cleaned filter cartridge dry thoroughly in the sun so that all the microbes die off. Soaking the cartridge in a TSP (trisodium-phosphate) or similar cleaning solution prior to hosing will improve your cleaning. The filter cartridge should be replaced after 10 -18 cleaning cycles for best results.

Cartridge Filter

2. Sand Pool Filters:
Sand filters are the simplest of filter types that are available to pool owners. There’s literally no need to inspect the inside of a sand filter periodically. Cleaning/backwashing is easy which is facilitated by the means of a multiport valve and auto backwash system. This is also available in the market.

The sand is the main filter medium in a sand pool filter (#20 silica sand; 45 - 55 mm) which is specially treated and graded to trap particles in the 10 - 100-micron range. The sand filters are connected to a pump with pre-filter which takes the suction from the main drains.

Pool sand filters are known to have the lowest maintenance out of the three types of pool filters. You may only need to open up the tank every 3 years or so if it is maintained and backwashed at regular intervals i.e. the clean pressure gauge will give you an indication on when to backwash the filters. A sand filter can be the perfect choice for a pool owner who wants value, simplicity, and durability.

Sand Filter

3. Diatomaceous Earth Swimming Pool Filters (DE):
DE pool filters have the best filtration of all the pool filter types, they can filter or trap particles up to 3 microns. DE powder is what actually does the filtering. The powder is added through the skimmers, which coats the filter fabric/fine mesh covered grid. The water first passes through the powder, then the fabric covered grid then passes through the DE and finally, the dirt gets trapped in the DE powder "cake" or coating.

DE pool filters are more expensive and have a bit of higher maintenance than other filter types, but it produces great results.

DE stands for Diatomaceous Earth, which are the microscopic skeletons of Diatoms, an ancient sub aquatic creature. Under the microscope, Diatoms and perlite appear to be tiny sponges. This is where the dirt, oil and contaminants become trapped in your filter, within the powder.

DE Filter

A huge variety of in-ground and above ground pool filters are featured in our pool solutions store at Kadavanthara, Kochi, Kerala. Kindly visit our store and check out the variety. We will be happy to assist you in picking the right size pool filters, that best meets the needs of your pool. If you are unsure of anything related to pools and spas let us know via mail or get in touch with us.

Our Area of expertise include

  • Pool Design Consultation.

  • Electro-mechanical installation and Technical Support.

  • Supply of Pool filters and equipment.

  • Swimming Pool And Spa Equipment.
  • Disinfection of Pool.

  • Underwater Lighting.

  • Tiles and Accessories.

  • Safety pool covers.

  • Heating and dehumidification systems.

  • Spa Systems ( Above Deck and Below Deck) 


Our Goal - To provide our customer with the best of our services and at best competitive value to suit your budget.

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