Construction of ferrow cement tanks in schools

Just see, says the headmaster we have enough water and also the water is clean. This is after an N.G.O constructing water tanks for us in the school. We have had cases of diseases in the school due our children taking dirty water  that is assisting us and even our children have been trained and given messages on how to maintain hygiene and proper sanitation in the school. We rarely get sick children in this school says the teacher. The schools performance is improving year to year.