The method used 6 liters of water for each wash. The scientists studied the droplets and aerosols (the smallest particulates among droplets) when the toilet was flushed with the lid open.

Low toilet water can cause weak flushing pressure ... shaft dictates water levels as it rises and falls. Remove the tank lid, and follow these adjustment steps for each valve type.

Slow motion of Water flushing into toilet bowl in bathroom. Cleaning of toilet bowl water stream. Man with closed nose opening toilet lid and taking out clothes... Man with closed nose opening toilet ...

The water filling the toilet after the flush is the same as that ... The first step was to make a new tank lid. [gregory] used particle board and admits it probably isn’t the best material ...