How to choose the right pump for the pool?
You need to know the fact that the water should be safe for a person to stay in the swimming pool. Stagnant water, which periodically receives various kinds of pollution, eventually turns into a hotbed of substances and microorganisms dangerous to human health. Therefore, it is necessary to periodically change the water or provide for a cleaning system in a pool of any size. In small fonts or children's inflatable pools, replacing water is not a big problem, but if the pool capacity is tens of cubic meters, only a water purification (filtration) system, for example Grundfos water pump, can help.
Filtration system in the simplest version should include two main components: a filter and a pump. We need a self-priming circulation pump for pool filtration system. Nevertheless, pumps with different capacities are needed for pools of different sizes (water volumes). According to the Sanitary Rules, the time for complete water exchange in the pool water treatment system is 6 hours. During this estimated time, the pump must pump the entire volume of water in our pool.
It turns out that the pump capacity = the volume of water (cubic meters) in the pool / 6 hours. For example, for a pool of 30 cubic meters, you need a pump with a capacity of 5 cubic meters per one hour. We got the minimum (calculated) value of the pump performance. To ensure the correct operation of the filtration system, it is necessary to take into account possible losses in pump performance, so we always add a little to the calculated value. For our example (a pool of 30 cubic meters), a pump with a capacity of 6 to 8 cubic meters per hour is ideal.
When selecting a pump for a pool filtration system, it is important to consider that the pump performance must exactly match the filter capacity (throughput)!
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