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Your sand filter requires little, if any, maintenance. It is, however, important to backwash the pool filter weekly. To do this, set your sand filter’s six-way valve to ‘Backwash’.
When backwashing, the water passes through the filter in the opposite direction. This removes any dirt from the sand. When the pool filter is backwashed, the water always drains into the sewage system. This way, you remove the dirt from your pool filter.
The disadvantage of this is that, after backwashing, you have to add water again (whether automatically or not). The advantage is a clean filter and a brighter pool. Adding new water also helps avoid an excessively high cyanuric acid content.
Backwashing is the only maintenance required for your pool’s sand filter. After 5 to 6 years, it is advisable to change the filter sand and clean the inside of the sand filter. Emptying your sand filter is a difficult job, but it has a positive effect on the clarity of your pool.
The number of hours you need to filter the pool depends on the volume of the pool and the flow that your pool filter can process.
In addition, the time of year and the contamination in the pool also play a part in determining the filter time for the pool.
During the winter period, the pool filter does not need to be used. During the season, you need to filter the pool completely twice a day. That is why the volume of the pool and the flow rate of the pool filter play an important part.
If your filter can filter the full volume of the pool in 6 hours, the filter should run 12 hours a day. The ideal situation is: 3 hours filtering then 3 hours not filtering, 4 times in a row.
In practice If you have a filter that can process 14 m³ an hour, you can filter up to 84 m³ of pool water in 6 hours.
Sometimes, however, the pool can be very dirty or you may have to deal with algae. In this case, we recommend running the filter 24 hours a day until the pool is clear. Once the water is clear, you can reduce the filter time again.
The pool filter does not need to be on constantly, but in some situations it is recommended. Not only when the pool is very dirty, but also when it is very hot and the pool is used a lot.