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Plumbing Vent

A plumbing vent was the solution to decades of foul smelling air and the mandatory retrofitting of cities to comply with public health standard. Beginning at the start of the first industrial revolution, population density became a problem in metropolitan areas. Along with air and other pollutants human waste and grey water was not being expelled sufficiently. The answer was to invent sewage systems across America and Europe. Modern sewage systems have become synonymous with a developed area of the world. With that introduction, the smell and waste was driven underground in methods that removed the waste from population centers. But the dilemma is that horrid putrid smells would waft up the pipes. The first toilets suffered from this ailment and much of the bathrooms were rank. To fix this, the trap was invented. It was an area in the piping directly behind all the fixtures that retained water at all times creating a water seal. The seal was an efficient solution.

However, when flushing and exhausting grey water or human waste from a household it would sometimes create a suction or negative pressure system on the back of the trip which would suck or slowly siphon the water out. To rectify the problem the plumbing vent was invented which provided a atmospheric neutralization to the problem while sufficiently exhausting the foul air above the human population. Plumbing vents are required when the sewage system was first invented by modern methods of pressure removal have been invented which are implemented in most new construction sites. Air admittance valves are commonly installed as one way valves which equalize the pressure differential between the soil stack, or the aggregated sewer output of a building, and the regular atmospheric pressure to prevent the aforementioned siphoning of the trap water.

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