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

Maintenance of swimming pool sand tank

Maintenance of sand tanks in swimming pools Equipped with sand tanks in swimming pools can help water treatment, but if you do not pay attention to maintenance, it will reduce the filtering effect of the sand tanks and affect its service life. Generally, you need to install the following three methods to do it. 1. Backwashing is generally carried out 2-3 times a month, and the backwashing time is generally 5-10 minutes. (For example, once a week in peak seasons) 2. Sand tank cleaning is generally done after the swimming season ends or before the opening of the second year. It is best to carry out a cleaning to avoid the oil produced by the human body accumulating in the sand for a long time, which will cause the sand to agglomerate and affect the filtering effect. You can use clean water and sand cleaning agent to clean the sand tank. 3. Sand replacement Generally, after three years of use, the sand tank needs to be replaced with quartz sand.

Because quartz sand will become smaller due to friction after long-term use, and part of it will be washed away after backwashing. If it is not replaced for a long time, fine sand particles will rush into the swimming pool with the water flow after normal circulation, affecting water quality. . 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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----It is best to replace the silica sand of sand filters every 1-2 years for the following reasons:
a During backwashing, the filtration bed volume will expand upwards by 1.2 to 1.3 times. The water flow will drive the filtration layer to flow up and down, causing the filtration material particles to collide with each other. Backwash will let the small sand evacuate.
b.Some silica sands will be welded when the acid and alkali are changed due to insufficient purity;
Therefore, the longer the time, the worse the filtering effect of the sand tank. Since backwashing will consume and take away some sand, we need to replace the sand in the sand tank within the specified period.
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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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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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