The world is facing a problem represented by the decline in the percentage of drinkable water. This problem is getting worse and bigger day after day. This is due to the huge increase in population, and because of industrial progress and the resulting environmental pollution, including water pollution.

Since water is the basis of life and cannot be dispensed with, everyone must rationalize its consumption. Rationalizing water consumption begins from the home, through the university, and all the way to public facilities. Until water rationalization becomes a community culture for the correct and optimal use of it, and benefiting from it at the lowest possible quantity and cost in all areas of life.