When a Missouri water treatment plant needed reliable level measurement of their fluoride bulk storage tanks, they turned to Flowline. Fluoride is commonly injected into the nations drinking water to prevent tooth decay. In higher concentrations, fluoride is vaporous and corrosive. The plant had used a different brand of ultrasonic sensors with poor performance, because the thick vapor was absorbing the acoustic signal, and causing the sensors to periodically loose track of the level. For this reason, Flowline suggested the use of our pulse radar sensors that are unaffected by vapor, corrosion or condensation.