Find the right commercial pool filter

By American Pool Marketing December 6, 2013


The sheer scale of a commercial facility requires a lot of pool maintenance. A commercial pool filter is critical to keeping the water clean, but its level of performance depends on the model.

Choosing the right type
There are three basic types of commercial pool filters you can choose from – sand, cartridge and diatomaceous earth. These range in price, effectiveness and maintenance, so be sure to carefully assess your facility’s requirements and needs before investing in one.

Consider inexpensive sand
Sand filters are common and easy to use, but aren’t the most effective. Pool water passes through the sand, which captures particles with its naturally jagged material. As debris collects on the filter, it creates a finer filter, which is better able to catch smaller particles. However, there will be a point where the device accumulates too much debris, causing low flow and high pressure to be effective. A backwash is then required. The filter flow is reversed, sending clean pool water into the filter, this function is called backwashing. The reverse flow of water dislodges all trapped material on the filter media and sends it through the valves and piping to waste. Sand filters are inexpensive to maintain, but will require routine work.

Look into cartridges
Cartridge filters can capture smaller particles than sand models and feature a larger surface area, decreasing the chance of clogs and therefore, maintenance. These work like air filters and available in two types that range in price. The lesser priced, which utilize a cluster of cartridges will require more frequent replacement, whereas the higher end, utilizing a single cartridge, will last longer. Cartridge filters operate like an air filter, allowing water through and catching particles as they make their way back into the basin. This is a popular choice due to its easy maintenance. To clean these filters, you simply have to disassemble the unit, chemically soak and rinse off the cartridges.

Invest in diatomaceous earth (DE)
These filters are the most expensive type and it’s easy to see why. These units use a powder, which is made from fossilized microscopic animals, called diatoms. This powder is used to coat a series of grids within the filter and are the most efficient when it comes to capturing the tiniest of particles. When the pressure builds in a diatomaceous filter, it does require a backwash, like the sand filter. Afterwards, the grids will have to be re-coated with more powder.

If you’re unsure about which commercial pool filter to purchase for your commercial pool, reach out to professional pool maintenance services, who can help choose the best one for your unique facility.