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

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Since established, Poolking aims to provide outstanding and impressive solutions for our customers. We have established our own R&D center for product design and product development. We strictly follow the standard quality control processes to ensure our products meet or exceed our customers' expectations. In addition, we provide after-sales services for customers throughout the whole world. Customers who want to know more about our new product plumbing uv sterilizer aquarium or our company, just contact us.

Owners often complain that the sliding mechanism is often stuck and the door can be blown away from the track in mild to moderate winds. This Instructable demonstrates how to reduce or eliminate these problems by: 1)Cover suspicious polycarbonate panels with high quality UV-proof 6 mil plastic film. (About $60)2)Building a rigid 2x4 frame consisting of benches and shelves, it can act as a solid internal structure, anchor the aluminum frame during construction and provide continuous stability. (

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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.
Poolking Filters in Liaocheng Underwater World
Liaocheng undersea world takes sightseeing, interactive experience and popular science education as its theme, including exploring Amazon, interactive exhibition area, jellyfish Pandora, boutique marine life, sea animal performance, theme exhibition area, popular science classroom, children's fun world, otter exhibition area, large water body (undersea tunnel), marine theater and other exhibition areas, and adds a variety of scientific and technological interactive experiences.
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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!

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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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