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

When does the swimming pool filter sand tank backwash?

There are various specifications and models of swimming pool filter sand tanks. Therefore, the specifications selected for different sizes of swimming pools are not the same. Generally, regular swimming places will have a circulating filtration system, and the owners rarely change the water during the swimming season. The system replenishes water to ensure pool water, and the daily cycle must be turned on for at least 6-8 hours. At this time, we need to backwash to ensure the filtering effect of the sand tank. When is the most suitable time for backwashing and precautions: 1. If the pressure gauge reading on the filter sand tank is higher than 2.5kg or above, you need to immediately check Backwash the filter sand tank; 2. Confirm that the relevant water pumps that need to backwash the sand tank have stopped running; 3. Adjust the multi-directional valve on the filter sand tank to the backwash (Backwash) state; 4. Run the water pump first; check and Observe the clear water mirror on the sand tank until the water is clean; then turn off the water pump. 5. If the backwash water cannot be checked, the backwash time is generally 3-5 minutes.

(Generally 2-3 times a month, such as once a week in peak season) 6. After backwashing, turn off the water pump, adjust the multi-way valve to (RINSE) rinsing state, then turn on the water pump to run for 1-2 minutes and then turn off the water pump That's it. In short, remember that the swimming pool has a filtration circulation system that needs to be backwashed frequently so as not to affect the filtration effect of the pool water. 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 .
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Contact: Sandy

Email: sandy@poolking.co

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WhatsApp:+86-13922334815

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

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