What is the purpose of installing obstruction lights on an elevated water tank?

The purpose of installing obstruction lights on an elevated water tank is to warn aircraft in the vicinity. Elevated structures like water tanks can pose a hazard to low-flying aircraft, especially in urban areas or near airports. The obstruction lights are typically bright and visible from a distance, making it easier for pilots to identify the presence of these structures and navigate safely around them. This is an important safety measure that helps prevent accidents and ensures the protection of both aircraft and individuals on the ground.

While energy efficiency, enhancing water flavor, and indicating water level are important concerns in water distribution, they do not relate to the safety purpose served by obstruction lights. The primary function of these lights is to maintain safe airspace in the region surrounding the water tank.