Pool Pump and Filter
Pool Pump and Filter Product Selection Guide
When selecting a pool pump and filter, it is important to select the correct one to suit your pool size.
Below are some sizing guides for typical pool installations. Also included on this page are some pros and cons on the different pool filter media.
Pool Volume
The formulae below require all dimensions to be in metres. If the depth of the pool varies, the average pool depth should be used.
Rectangular Pools - length x width x depth x 1000 = volume in litres
Round Pools - diameter x diameter x depth x 785.5 = volume in litres
Rectangular In - Ground Pools
|
6m x 3.7m x 1.4m = 31,000 litres |
| 7.3m x 3.7m x 1.4m = 38,000 litres |
| 9m x 3.7m x 1.4m = 47,000 litres |
| 9m x 4.5m x 1.4m = 57,000 litres |
| 12m x 4.5m x 1.4m = 76,000 litres |
| 12m x 6m x 1.4m = 101,000 litres |
| 15m x 7.5m x 1.4m = 158,000 litres |
1.4m = Average Depth
Rectangular Above - Ground Pools
| 4.9m x 3.7m x 1.2m = 22,000 litres |
| 6m x 3.7m x 1.2m = 27,000 litres |
| 5.8m x 4.5m x 1.2m = 31,000 litres |
| 7.3m x 3.7m x 1.2m = 32,000 litres |
| 9.8m x 3.7 x 1.2m = 44,000 litres |
| 8.2m x 4.5m x 1.2m = 44,000 litres |
| 9m x 4.5m x 1.2m = 49,000 litres |
1.2m = Average Depth
Selecting the Correct Filter Type
| Sand Filter | Cartridge Filter | |
| Filtration Clarity | Very Good | Very Good |
| Media Type | Sand / Zelbrite which is re-used for several years | Element which is replaced after 2 - 3 years |
| Cleaning Method | Backwash - Reverse flow of water through filter to flush out dirt. | Remove element and hose down |
| Loss of Pool Water | Yes, due to backwashing | No, as backwashing not required. |
| Ease of Operation | Very simple as the sand / Zelbrite doesn't need to be handled or frequently replaced | Requires a little more attention as element should be removed and cleaned regularly |
| Operating Cost | Low as sand / Zelbrite is virtually permanent | Medium - Low water loss but occasional element replacement |
| Initial Cost | Medium | Low |
