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Poolking, your best swimming pool equipment manufacturer and supplier with more than 20 years experience.   ​​​​​​​  Email: sandy@poolking.co

Why should the quartz sand filter be cleaned, and why should it be washed?

Why should the quartz sand filter be cleaned? The reason for cleaning the quartz sand is the accumulation of grease rather than calcification. Since the surface of the swimming pool or massage pool has a large amount of human fat in the recycled water, if these fatty substances are not properly treated by SHOCK, they will accumulate. On the surface of the quartz sand, the quartz sand repels the fat, so the fat will continue to accumulate in the depth of the filter layer, and finally surround the entire filter layer. At this time, the fat will be repelled by the entire filter layer If it cannot be captured by the filter at all, the swimming pool water will be slightly green to slightly yellow turbid. Even if backwashing cannot improve the water quality, we have to change the water to solve the problem, but after a while, the repeated problem will appear again. Jacuzzis are the most prone to this problem, and the filter tank cleaner is used to deal with this problem. It acts like soap. Why should the quartz sand filter be washed? Because the filter medium of the quartz sand filter is reused, the filter layer is designed to expand upward by 1.2 to 1.3 times in volume during backwashing, and the upward water flow will drive the filter layer to The up and down flow makes the particles of the filter material collide with each other, and then scrape off the impurities on the surface. Since the material is the same, the hardness is also the same. Therefore, some small parts of the filter material will be broken into smaller particles with the backwash water. However, some of the broken small particles are relatively heavy and fail to settle to the bottom with the backwash water loss, and will pass through the water collection pipe and enter the swimming pool, so it is necessary to perform the drainage action of normal washing. Generally speaking, the quartz sand filter The positive washing action is much more important than backwashing, because, if in the case of water shortage, the water volume and time of backwashing may be insufficient. When filtering downward, some of the impurities that have not completely fallen off will penetrate downward. If it enters the swimming pool rashly, there will be black sewage dragging marks, forming the so-called abnormal phenomenon, making the swimming pool water turn black in a short time , so the positive washing action of the quartz sand filter is unavoidable. 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..

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a. Power failure or motor protection tripped
b. Pump doesn't vent
c. Pump doesn't fill the water
d. Suction line/hose leaking
e. Transparent cover not properly installed - check filter basket - even bolts
f . Inlet suction process is too large g.) Total resistance loss exceeds the allowable range of the pump - recalculate the required pressure
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After about 5~10days ,or when the reading of the pressure gauge on the pump side of the filter has increased by about 0.2bars since the last backwash , backwash the filter as follows:
1. Stop the pump
2.Close the valves on the suction and return lines.
3.Open the cover of the pump and empty the filter gasket .
4.Refit the cover
5.Open the valve to the drain outlet
6.Turn the lever to BACKWASH
7. Open the valves to the suction and return lines.
8.Start the pump .Rinse the filter for about 1 to 2 minutes until the water in the sight glass is clear .
NOTE : Any electric heater must be off .
9. Stop the pump
10. Turn the lever to RINSE , start the pump and rinse for about 15~30 seconds. Stop the pump and turn the lever to FILTER . This is the normal operating position .
11. Close the drain outlet valve and start the pump . Switch on the electric heater if any .
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Best swimming pool equipment manufacturer - Poolkin will continue for innovative management and excellent quality. Imagination will subvert the future, intelligent manufacturing will lead the era, that's the motto of Poolking!

If you have any question,please contact us.

Contact: Sandy

Email: sandy@poolking.co

Sales Hot line: +86-20-34982303

WhatsApp:+86-13922334815

Add: No. 80, Danan North Road, Dagang Village, Dagang Town, Nansha District, Guangzhou City (temporary business premises)

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