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Pool Filters

Pool Filtration Systems

Pool water free from debris and other contaminants is important for maintaining swimmers' health and safety, not to mention happiness.

But the type of filter you need can differ depending on your filtration needs, financial situation and willingness to put time and effort into maintenance.
Plus the quality of filtration depends on the size of the filter media; the finer the media, the higher the purity of water achieved.
Here's some information on the most common types of pool filters on the Australian market to help you decide which type is best suited to you.
All of which are sold, serviced and repaired by Cool Pool Care: 0411 383 824.

Multi Media

How it works:

Manufactured with high grade fiberglass and resins for durability, this filter will give you years of clean pool water. Depending on the choice of media, this medium filters out everything larger than 3 - 40 microns. Sand/media still remains the most popular choice on the market for their durability and simplicity in maintenance.

  • Durable and easy to clean, as it does not need to be disassembled like other types of filters
  • Filter's multiport valve gives you control of water flow through the filtration circuit
  • Filter media needs to be replaced approximately every five years
  • Needs to be backwashed regularly, which can use a lot of water
  • Generally requires a larger installation space compared to other filter choices

Cartridge

How it works:

Cartridge filters typically use four cylindrical accordion pleated filters to trap anything larger than 30 microns, traditionally making them a higher filtration level than sand filters. However, this option can come with some extra costs and maintenance.

  • No need for backwashing, no backwash line is required
  • Generally requires less space for installation
  • Backwashing not required, requires less water for cleaning, more environmentally friendly than other kinds of filters
  • Unlike other filters, there's no provision for backwashing; when the cartridge is clogged, it must be removed for cleaning
  • Needs to be disassembled and cleaned – high pressure spray
  • Cartridges may need to be replaced more regularly than filter media, depending on level of use and care

Diatomaceous Earth (DE)

How it works:

Able to trap anything larger than 2 microns, this type of filter gives you the cleanest pool water out of the four types. Diatomaceous earth, the medium used in this filter, is made up of fossilized remains of a type of hard-shelled algae, and each grain has microscopic holes running through it to trap even the finest particles. DE filters have internal elements that become coated with DE. It is this 'filter cake' that strains dirt, dust, algae, and some forms of bacteria from the water.

  • Filters down to 2 microns
  • Large surface area requires less maintenance
  • Needs to be backwashed as well, though not as often as sand filters
  • Costs to replace DE each time you backwash
  • Time and effort to replenish the DE powder in the filter
  • There are claims of carsonagetic material being found in DE powder

Glass Filter Media

How it works:

One of the newest filter media on the market, Glass Filter Media or Glass Polymer offers a filtration level comparable to DE. Made from pure glass, glass media will filter out anything larger than 3 microns, giving you superior quality water.

  • Small effective size of only 0.6mm to 0.8mm. Its narrow particle size range allows very effective in-depth filtration
  • Spherical shape of beads means less friction levels inside the filter and therefore requiring only 20% of the water you would use to backwash a sand filter
  • Chemically inert, safe, smooth and high purity
  • Backwashes faster than sand, saving energy and water
  • None

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