Water towers are, typically, tall structures designed to support a water tank constructed at a height sufficient to pressurize a water supply system for the distribution of potable water, and to provide emergency storage for fire protection.
Water towers and tall structures such as, for example, Kuwait Water Tower in Kuwait City, Kuwait (187m) are hazardous to aviation safety because of their height and location and should be marked.
There is no single standard defining minimum mandatory requirements governing design and installation of obstruction lighting; on the other
hand the most common and widespread regulations are ICAO's and FAA's.
|H < 45m||1 level of low intensity obstruction lights shall be used|
|45m < H < 105m||2 levels of obstruction lights shall be used: top level with medium intesity, intermediate with low intensity|
|105m < H < 210m||4 levels shall be used: top with medium intesity, 1stintermediate with low intensity, 2nd intermediate with medium intensity, lower level with low intensity|