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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.
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Rotational force the pool return jets create is the most important part of cleaning the pool water and pushing organic waste across the mouth of the skimmer. With a correctly designed and operated swimming pool, this circulation is visible and after a period of time, reaches even the deep end, inducing a low-velocity vortex above the main drain ...
Robotic vacuum cleaner on a hardwood floor. A robotic vacuum cleaner , sometimes called a robovac or a roomba as a generic trademark , is an autonomous robotic vacuum cleaner which has a limited vacuum floor cleaning system combined with sensors and robotic drives with programmable controllers and cleaning routines.
This swimming pool service technician is using a pool skimmer to remove debris from a courtyard fountain at an apartment complex in Tulsa, Oklahoma.. A swimming pool service technician is a person who maintains swimming pools, including keeping the water clean and safe by fixing pool equipment such as pumps, motors and water filters.