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

What should be paid attention to when backwashing the swimming pool filter sand tank?

The swimming pool sand tank is the most important part of the circulating filtration system, which plays the role of filtering pool water and purifying water quality. Just a long time of filtration, a lot of dust, impurities and dirt will accumulate in the sand tank, and backwashing will be carried out after a certain period of time to restore the water purification ability of the sand tank. At this time, we need to backwash to ensure the filtering effect of the sand tank. When is the most suitable time to backwash and the matters needing attention: 1. If the pressure gauge reading on the filter sand tank is higher than 2.5kg or above, it is necessary to immediately check the 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. Confirm that the relevant valves on the pipeline are in Correct position; 5. 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.

6. 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) 7. 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. 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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Using non metallic components fiberglass pressure tanks are rapidly replacing steel tanks in numerous applications. Fiberglass vessels offer several advantages in comparison with steel vessels .
Fiberglass vessels have a mechanical and chemical resistance superior to steel . Fiberglass tanks do not rust or corrode and are able to withstand damage from many types of water treatment chemicals.
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 .
a.Firstly you can tell me the pool size such as wide, length and depth.The circulation period is 4 hours,then we can use the pool volume divide by 4 to know the flow rate.Based on this we can know choose the suitable model for sand filter and pump.
b.Usually 4 meters can install a pool light.Both ends of the pool can install the ladders.
The basic filtration equipment can be chosen like above method.The other accessories can be fixed according to the using environment and requirement.
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
h. Mechanical shaft seal leakage
Poolking’s sand filter warranty is 3 years for fiberglass filter,2 years for plastic filter.During the warranty period,if the filters parts have any damage,we can judge the factors according to the photos or videos, then we can offer free parts to replace. If the filters are damaged badly,we will provide a new one.
The pumps and lights are 1 year warranty,the method is same as filters.
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Using 3 months to prepare a new hollywood video is going to on line at the begginning of 2022.The video will let you have wonderful vision to show Poolking evolving from an advanced manufacturer to a leading intellectual creator.You can see it in the website,youtube,facebook and ect.
Poolking's top class sand filters in Chimelong Ocean Kingdom
Chimelong Ocean Kingdom is the largest ocean theme park in the worldwith rare marine animals, top-level amusement equipment and novel large-scaleshow, and strives to create the top-class, largest and most abundant amusementequipment leisure themed park.
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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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