A lift station that never overflows can still be quietly wearing itself out. Pumps that start and stop dozens of extra times a day, floats fouled with grease giving a false reading, a standby generator that hasn't been test-run in months — none of these show up as an obvious failure until the day they do. Process control at a lift station is about catching those developing problems through routine monitoring and correct equipment operation, not just reacting to an alarm.
Level Control Devices: Floats, Transducers, and Ultrasonics
The simplest and most common level control device is the float switch — a sealed float on a cable or rod that tilts or rises to trip a switch at a fixed elevation. Floats are inexpensive, reliable, and require no power to sense level, but each one only reports a single discrete on/off point.
More capable stations use pressure transducers (submerged