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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 Pump Selection

The choice of swimming pool water pump should be based on the flow and lift of the pump, installation conditions, and water quality requirements. However, choosing a sewage pump does not take into account the specific effect of the sewage pump. The effect of the sewage suction pump can be obtained from the parameters of the sewage suction pump. The parameters of the sewage suction pump mainly include flow and head, in addition to shaft power, speed and necessary NPSH.

Flow rate refers to the amount of liquid output through the pump outlet per unit time, generally using volume flow rate; head is the energy increment of the pumped liquid per unit weight from the pump inlet to the outlet. The efficiency of the sewage pump is not an independent performance parameter, it can be calculated from other performance parameters such as flow, head and shaft power according to the formula. To choose a sewage suction pump, we need to consider the efficiency of the sewage suction pump, that is to say, we need to know the pump head, flow rate, power and other parameters.

Of course, it does not mean that the higher the power of the pump, the better, the higher the head and the flow, the better. We need to choose according to our own conditions of the swimming pool. Relevant skills in swimming pool maintenance: 1. What is the possible reason for the insufficient flow of the water pump? How to solve it? (1) There is air in the water pump. Solution: deflate.

(2) The sealing ring of the water pump is damaged. Remedy: Replace the other part of the sealing ring. (3) Air leakage at the packing.

Method: apply some butter on the packing and tighten the packing pressure plate. (4) The speed of the water pump is too low and the voltage is too low. Solution: try to increase the voltage.

(5) The impeller, water inlet and pipe are blocked. Solution: remove debris. (6) The impeller wears too much.

Solution: replace the impeller and check the bearing wear. (7) The motor turns incorrectly. Solution: adjust the phase.

(8) The centerline of the impeller is not immersed in the liquid. Solution: adjust the immersion height. 2. What are the possible reasons for the insufficient lift of the water pump? How to solve it? (1) The impeller is damaged.

Solution: replace another part. (2) The speed is insufficient. Solution: Check whether the voltage and motor are normal.

(3) The infusion contains gas. Solution: reduce the temperature of the liquid to remove the gas. 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.
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.
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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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