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

Swimming pool water treatment equipment sand tank function and backwashing process

Sand cylinder function: 1. Filtration function—FILTER normal filtration. 2. Backwashing function—BACKWASH backwashing, discharges the dirt accumulated in the sand tank. 3. Positive flushing function—RINSE discharges the residual dirt in the water pipe after backwashing.

4. Drainage function—WASTE drains water directly without going through sand tank circulation. 5. Recirculation function—RECIRCULATE is directly discharged back into the pool by the water pump without going through the sand tank circulation. 6. Closing function—CLOSED closes the sand tank.

Backwash process: 1. Confirm that the relevant water pumps that need to backwash the sand tank have stopped running. 2. Adjust the multi-way valve on the filter sand tank to the backwash state (BACKWASH). 3. Confirm that the relevant valves on the pipeline are open.

4. First run the water pump; check and observe the clear water mirror on the sand tank until the water is clean; then turn off the water pump. 5. Confirm that the backwashing has been completed; confirm that the water pump is turned off; adjust the multi-way valve on the filter sand tank to positive flushing (RINSE); confirm that the relevant valves on the pipeline are in the correct position; turn on the water pump, check and observe the clean water on the sand tank mirror until the water comes out clean; then turn off the pump. 6. Adjust the multi-way valve on the filter sand tank to the filter state (FILTER), and the sand tank is cleaned.

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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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