[China Glass Net] In the purification of swimming pool water, quartz sand acts as a filter material. Quartz sand is filled in a sand tank to purify the filtered water. So why clean quartz sand?
First of all, we must first understand the principle of pool water filtration. The filter of the swimming pool circulation system is a sand tank in which the filter material is quartz sand. Quartz sand itself has the advantages of high strength, long service life, large amount of treated water, stable and reliable effluent quality, and can remove suspended solids, colloids, sediment, rust and other impurities in water. The swimming pool water flows into the sand tank from the upper end of the sand tank and is filtered through quartz sand. The impurity dirt is trapped in the sand tank by the interception and adsorption of quartz sand, adsorbed on the surface of the quartz sand, and cleaned after filtering. The water is re-flowed back into the pool through the pipes at the bottom of the sand tank.
Since the filtered dirt impurities are adsorbed on the surface of the quartz sand, the surface of the sand will be wrapped with impurities and gradually thickened. When the impurities of the package accumulate to a certain amount, the filtration speed of the water flow will be affected, and the quartz sand will be caused. The water purification capacity is gradually weakened, and the water filtration is not clean. Therefore, it is necessary to clean the quartz sand at regular intervals to remove impurities on the surface to restore the water purification capacity.
The process of cleaning quartz sand is to backwash the sand tank. Use a special sand tank cleaner for cleaning. After cleaning and then filtering, it will be more efficient. The frequency of general cleaning is half a year or once a year. It can also be subject to availability.
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