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

What problems should be paid attention to when purchasing stainless steel sand cylinder?

Guangdong Boying Environmental Protection Co., Ltd. is a professional company specializing in R&D, production and sales of environmental protection water treatment equipment. The company's products mainly include stainless steel sand tanks, hair collectors, ultraviolet sterilizers, etc. Then, what problems should be paid attention to when buying stainless steel sand tanks? ? Special reminder from Guangdong Boying: Among the manufacturers of stainless steel sand tanks in Guangzhou, some manufacturers have been using white iron made of 201 to pretend to be stainless steel 304 and 316L, and 2MM thick to pretend to be 3MM or 4MM thick, defrauding customers at low prices; Evade responsibility and sign contracts with customers under false names and company names. When trading or signing contracts, be sure to indicate in the contract whether it is 304 or 316L material, how thick is it? and attach the second-generation ID card of the person who signed the contract with you Copy to ensure your interests! Don't be deceived by its hypocritical appearance and sweet words. I am one of the customers who were deceived. The reason why I am here to remind everyone is not to be deceived like me. The bottoms of these products are all made of 201 white iron and welded upside down. They don’t need any production equipment at all, so don’t be deceived by some people’s lies. If you can’t produce a copy of your second-generation ID card when signing the contract with you, it will prove that what you have received is 100% fake, and you get what you pay for.

Guangdong Boying is the first choice for purchasing stainless steel sand tanks. The stainless steel sand tanks we produce are of guaranteed quality, affordable prices and comprehensive specifications. Welcome to visit our factory. The national consultation telephone number is 4008-335-020. 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 .
----Poolking utilize serval world class production machines to produce the products, and strict quality control system for each products. It treats a small flaw with zero tolerance.
Not only good quality products, but also fast and satisfying after sales service for clients. Let the clients enjoy the clear water and comfortable services.
If Poolking’s products are same quality than others but higher prices, how can Poolking survive ? However Poolking can defeat other players and seize more market share.
Poolking is your best choice!
Poolking's super commercial sand filters in Moscow Zoo
Moscow Zoo(Московский зоопарк)is the first zoo in Russia with more than 1,000 kinds of animals .The zoo is the member of the World and European Association of Zoos and Aquariums.
----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’s Horizontal Sand Filters in Singapore Zoo
Singapore Zoo is covering an area of 28.3 hectares. Natural scene in the parkinstead of fences, creating a natural living environment for all kinds of animals. Thereare about 3000 animals running free and living peacefully with tourists. It has beeninstalled more than 40 nos POOLKING's stacking horizontal sand filters in Sea Lion,Manatee Penguin hall . POOLING is the first manufacturer in China to produce
stacked horizontal sand filter.
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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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