When a US municipality needed reliable level measurement of their polymer mixing tanks, they turned to Flowline. Polymer is widely used in wastewater treatment to coagulate suspended solids, producing large curds of floc or solid material, which can then be easily removed from the process. Granulated or emulsive polymer is diluted with water, blended, and injected into the process with a high viscosity metering or variable speed pump. A polymer mixing tank typically holds 1-2 days of product before a new batch must be made up, and level measurement of this sticky media is critical to the operator. For this reason, Flowline suggested the use of a non-contact ultrasonic level sensor. The result is reliable polymer level measurement.