CARTRIDGE FILTER vs. SAND FILTER

CHOOSING THE BEST FILTER FOR YOUR CONCRETE POOL

So, you have approached a concrete pool builder, and you can’t decide what filter to choose? Here at Byron Bay Pools & Landscapes we make the process as easy as possible to help you make an informed decision.

When swimming in a pool, our bodies absorb large amounts of water through our skin.  This is why filters are extremely important as they remove debris, impurities and other harmful substances from our pool water.  While the pump and filter are the main components of a pool circulation system, there are many different parts involved in keeping your water clean and healthy.  It’s also important to know that the cleaner your water is, the less chemicals are required.

When it comes to deciding on which filter to use for your pool, you have two main options to choose from; Cartridge Filters and Sand Filters.  Let’s explore each option to help determine which is most suitable for you.

Cartridge Filters

Highly Efficient

  • Cartridge Filters can trap extremely fine debris.  For  example, this option could trap particles as small as talcum powder or mould spores.  
  • Unlike Sand Filters, Cartridge Filters do not require backwashing which can result in water savings of up to 92%.  And because Cartridge Filters have less water flow restriction, the pump doesn’t need to work as hard which can result in energy savings and you won’t need to replace the pump as often.

Less Maintenance Required 

  • Cartridge Filters need to be removed and hosed down at least 2-4 times per year depending on the size of your pool, how often it is used and weather conditions.

Higher Purchase Cost

  • Although Cartridge Filters can be more expensive to purchase, you won’t need to pay installation costs as plumbers aren’t usually required.  As mentioned above, you’ll also save on water bills but will need replacements every 1-3 years.

Sand Filters

Less Efficient

  • The smallest debris a Sand Filter can trap would be the size of a grain of beach sand which means more chemicals will be required to ensure the water is clean enough to swim in.  Using glass media instead of sand media can help to catch finer debris.
  • Sand Filters need to be backwashed weekly which of course means larger water usage.  Using glass media can also help reduce the amount of water required for the backwashing process.

More Maintenance Required

  • After your weekly pool vacuuming, Sand Filters need to backwashed to remove any debris that has been left behind.  The back washing process involves removal of the dirty water and resetting the sand bed.  This can result in extra water and chemicals required to replace the lost water.

Lower Purchase Cost

Although Sand Filters are cheaper to purchase, you will need to pay for installation costs and be prepared for higher water bills but you will only need to replace your filter every 4-6 years

Apart from the cheaper upfront cost of the Sand Filter, the Cartridge Filter appears to be the clear winner for most pool owners.  Cartridge Filters are more efficient, easier to maintain, and although more expensive to purchase, you will save money on installation, energy and parts replacement in the long run. Plus they can make your water crystal clear all year round. Our team here at Byron Bay Pools & Landscapes will guide you through selecting the right filter for your pool.

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