While pool sand filters are more expensive up front when compared to cartridge filters, they’re a very popular choice in Australian households due to their longevity and performance. On top of that, cleaning a pool sand filter only takes a couple of minutes with the backwash function.

Sand Filter Size 

Depending on the size of your pool, sand filters can be anywhere from 25 inches in diameter all the way up to 32 inches. Due to the large capacity of sand filters, they are less prone to blockages and they only require filter media replacement every five to ten years. 

For more information on how to change sand filter media, check out this easy step-by-step guide on how to change sand filter media

Sand Filter Media

Pool sand filters commonly use either pool sand or glass filter media and the quality of filtration will also depend on the type of media used, with glass filter media providing superior filtration over regular sand filter media. 

Click here for a more detailed explanation on the different types of sand filter media. 

Pool Sand Filter Troubleshooting

As we have mentioned earlier, pool sand filters are very robust and durable. If any problems arise, then the most common culprit would be the multiport. The multiport is where all of the water passes through before being filtered by the tank so some wear and tear is expected there. 

Pool Sand Filter Sizing by pool capacity

70,000 liters and below - 21" to 24" Diameter Sand Filter
70,000 liters to 110,000 liters - 25" to 30" Diameter Sand Filter
110,000 liters to 180,000 liters - 30" to 36" Diameter Sand Filter

Just like pool cartridge filters, it's always good to size up your sand filter to prevent issues like channeling, improper filtering, and to reduce the pressure on your pool pump. 

For more information on troubleshooting sand filters, especially multiports, we have an Equipment Maintenance article featuring Multiport Valves which you can check out if you’re having trouble with your sand filters. 

We also carry a range of multiports, top assemblies, spider gaskets, rotors or diverters, springs, unions, handles, pressure gauges, and pool filter spare parts to keep your pool sand filter in tip-top shape. 

If you’re considering moving from a cartridge filter system to a sand filter system then we encourage you to check out the Water TechniX Sand Filter Aspire, one of our best-sellers and is definitely the best valued sand filter for its price range.