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

Analysis of the main points of sand replacement in the sand tank of swimming pool equipment

Generally, the service life of the sand in the sand tank of the swimming pool is 1 to 2 years. The replacement of swimming pool sand is one of the key points of swimming pool sand tank maintenance. Regular replacement of sand tank sand can not only prolong the service life of the sand tank, but also improve the water quality of the swimming pool and the smoothness of the pipeline. Reason: The main function of the sand tank used in the swimming pool is to filter, and the quartz sand is the main filter material of the sand tank, so the quality of the quartz sand directly determines the filtering effect of the sand tank.

The shape of the quartz sand used for sand tank filtration is a regular hexahedron with eight corners. When the quartz sand is stacked in the sand tank, there will be gaps between the corners of each quartz sand and the corners. These gaps allow water to pass through smoothly, but impurities larger than the gaps cannot pass through, so that it can play a purifying role. The size of the gap determines the filtration accuracy of the sand tank. When the gap is small, the filtration accuracy is higher, but if the gap is too small, the water output of the entire sand layer will be reduced, thereby affecting the water output of the sand tank.

Therefore, the gap between the quartz sand determines the filtering effect, and the size of the quartz sand and the integrity of the quartz sand directly determine the size of the quartz sand gap. Therefore, it can be known that the size of the British sand and the integrity of the quartz sand are the most important factors for the filtration of the sand tank. 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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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 .
---Poolking has a professional Quality Control team to guarantee each product is 100% inspected before packing. For example when the filter inner tank comes out, they will make a first water testing before bobbin wounding. After installation all the connections or manhole & sightglass, they will make the second water testing. During the packing procedure, QC team will inspect all the details like wounding, neck, internal resin and so on to make sure no leaking and without flaw.
Poolking's super commercial sand filters in Moscow Zoo
Moscow Zoo(Московский зоопарк)is the first zoo in Russia with more than 1,000 kinds of animals .The zoo is the member of the World and European Association of Zoos and Aquariums.
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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!

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Contact: Sandy

Email: sandy@poolking.co

Sales Hot line: +86-20-34982303

WhatsApp:+86-13922334815

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