94-14: Fouling of Film Forming Cooling Tower Fills - A Mechanistic ApproachCooling tower fill fouling is a major water problem facing the cooling and utility industries. This phenomenon can result in the reduced efficiency of the cooling towers it affects and create the need to replace the fill sooner than expected. This paper focuses on identifying the three main causes of fouling honey comb PVC fill suspended solids, such as silt or clay, sparingly soluble minerals, and biofilm. The phenomenon of cooling tower fill fouling