Blue-White's new TFD+ (Tube Failure Detection) is now built into every FLEXFLO® Polymer Pump at no additional cost. This breakthrough technology is designed to detect the presence of oil- and water-based polymers in the pump head, which would indicate tube failure. When the TFD+ senses tube failure the pump automatically shuts off and will energize a relay, permitting communications with external equipment, such as a backup pump, an alarm or a SCADA system. There is no false triggering caused by condensation or washdown procedures. The pump will not resume operation until the problem is resolved.