How much sand should be filled in the swimming pool filter sand tank

A certain scale of quartz sand is generally placed in the sand tank. The size and specification of the quartz sand are different within a certain range. During normal filtration, water enters from the upper layer of the sand and comes out from the lower layer. When water flows through the filter layer from above, part of the solid suspended matter in the water enters the tiny holes formed by the upper filter material and is trapped by the surface layer of the filter material due to adsorption and mechanical retention. At the same time, the suspended matter between these trapped Overlapping and bridging occurs again, as if a thin film is formed on the surface of the filter layer, which continues to filter the suspended matter in the water, which is the so-called membrane filtration of the surface layer of the filter material. This filtering effect is not only on the surface of the filter layer, but also has this interception effect when water enters the middle filter layer. In order to distinguish it from the filtration of the surface layer, this effect is called osmotic filtration.

There are many users who don't know how much sand should be installed in the sand tank filter and are entangled. They don't know how much sand should be installed. If you understand the structure and working principle of the sand filter tank, then this problem will be much simpler. What kind of filter material is installed in the sand tank filter, and how much is appropriate, are determined according to the actual situation. The filter sand for swimming pools is quartz sand.

As for how much to install, generally speaking, it is enough to have a temporary storage space for the filtered dirt. It is not necessary to leave a lot of space. There is no absolute standard for this issue. It is completely determined according to the actual situation. It is similar to a backwash time interval problem.

In fact, there is no absolute standard for this, and the operation is entirely based on personal experience. The specific backwashing cycle is related to the amount of dirt, the flow rate, and the thickness of the sand layer. Poolking is the best swimming pool equipment manufacturer and supplier in China. Poolking exists to provide the highest quality swimming pool equipment while offering competitive pricing..