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Complete the scene with top-rated pool float pumps, pool vacuums and other pool accessories: Agptek Electric Air Pump. $20 at Amazon. Lalapool Swimming Pool Wall and Tile Brush.
The first swimming pool cleaner was invented in 1912 by Pittsburgh, Pennsylvania citizen John M. Davison. On November 26, 1912, he submitted a patent application to the United States Patent and Trademark Office entitled "Cleaning Apparatus For Swimming Pools And The Like", which was issued on March 25, 1913.
Swimming pool contaminants are introduced from environmental sources and swimmers. Affecting primarily outdoor swimming pools, environmental contaminants include windblown dirt and debris, incoming water from unsanitary sources, rain containing microscopic algae spores and droppings from birds possibly harboring disease-causing pathogens. [4]
The net is first oriented longitudinally in hot water and then transversally in a ramose. The final result is a net with a lot of tensile strength (between 50 and 70 kg per meter) that weighs between 6 and 9 grams per square meter, and a mesh size that may reach up to 30x30 cm according to the technical capacity of the manufacturer.
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