Filtration and circulation

Filtration refers to the removal of small particles from the water. Circulation is when the water is moved around the pool effectively, allowing the chemicals to reach the entire pool area. Good circulation in your pool means much more of the pool water reaches the filter. More than half the job of keeping a pool clear is handled by the mechanics of filtration and circulation. Therefore, the better the water is circulating, the better the filtration and the cleaner the pool.

So, now that we know more about filtration and circulation, what regular maintenance is required?

1. The pump should run for 8 to 12 hours a day, during summer. It is preferable for the pump to run during daylight hours. In winter, less running hours are required and the running time could be reduced by half.

2. Remove all the bigger leaves and debris from the pool using a “leaf rake”. Debris should be removed whenever it is noticed, rather than leaving it for the weekly routine.

3. Clean leaf baskets in the skimmer and the pump. Remove and clean bags of the skimmer devices, if fitted.

4. Backwash the filter:

a. Always switch off the pump before rotating the multiport valve.

b. Select backwash and run the pump for two to three minutes or until waste water runs clear (where visible).

c. Select rinse and run pump for 30 to 60 seconds or until waste water runs clear.

d. Return valve setting to filter for normal operation.

5. Check to see that the water level is high enough for the pump to operate correctly, that is at least halfway up the skimmer opening. Top up as necessary. During the rainy season, anticipate additional rain fill and reduce the pool water level (if already high) to prevent the risk of overflowing. A longer backwash than normal may be all that is needed; otherwise use the waste setting on your valve for this.

6. Check saltwater chlorinator operation (where fitted) and clean the cell as required.