According to a World Health Organization report, diarrheal disease accounts for an estimated 4.1% of the total DALY global burden of disease and is responsible for the deaths of 1.8 million people every year. It was estimated that 88% of that burden is attributable to unsafe water supply, sanitation and hygiene, and is mostly concentrated in children in developing countries. Waterborne diseases are caused by pathogenic microorganisms which are directly transmitted when contaminated fresh water is consumed. Contaminated fresh water, used in the preparation of food, can be the source of food borne disease through consumption of the same microorganisms.

Water storage tanks must be kept clean to prevent sludge formation, sediment and scale all of which provide favorable conditions in which bacteria can grow. Neglected Sump & Overhead Tanks are extremely high-risk areas for the spread of disease, as bacteria proliferates in contaminated or stagnant conditions. You would not drink out of the same glass for years without washing it, would you? Then why treat your water tank any differently. Out of sight out of mind is not a good attitude when it comes to your water storage. When you are on tank water the quality of your water is totally in your hands.

Examples of systems that present a risk: