There was a song called "Dirty Water" by a Canadian group named Rock and Hyde
Well the main reason they say is to take the dirty sediment out of the pipes by flushing it. There is a article below on this called Dirty Water.
the dirty water evaporates to forms steam and the dirt stays behind this steam is the condensed, pure water can be collected.This process is called distillation.
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The principle is 'dilution': with the first addition of clean water to dirty water, the dirty water becomes less dirty because it is diluted by the clean water. With the continued addition of clean water to dirty water, eventually the dirty water will be completely diluted and there will be no dirty water left; it will all be replaced by clean water.
dirty water is recycled in the water cycle
because they want dirty water
Dirty Water was created in 1966.
dirty water
dirty
Because the mud in the water makes it dirty.
Dirty water flows faster, due to the more weight it carries.