Block the overflow port of the pool with wet cloth, and the bowl-shaped rubber head will face down against the sewer port, or continuously press down hard to force air into the pipeline, or press down hard, and when the rubber head is flattened, it will pull back quickly, resulting in a vacuum state. The purpose is to loosen or disperse the blockage in the sewer pipe.
Extended data
1777 Samuel prosser of England invented the plunger toilet and obtained a patent. This is a new toilet model, which uses a piston to flush the toilet.
The exact time and inventor of the invention of toilet piston have not been confirmed. According to researchers from new york University, there is no patent record about its inventor. Jeffrey Gundersen may be the famous inventor of modern toilet plugs.
It stands to reason that the toilet plunger may have been invented between 1850 and 1900, when the technology of practical wood and synthetic rubber was very popular. The strong evidence to support this statement is that the rubber sucker was invented in the 1950s in 19. Therefore, the invention time of modern toilet plunger is at least after 1850.
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