We tightened Train 2’s backwash interval from 8 hrs to 6 and cut turbidity spikes at the effluent by roughly half, but the gains slip when night shift tweaks setpoints; how are you enforcing one standard without killing initiative? Our 05:30 handoff notes in SCADA aren’t sticking, and I’m considering locking ranges in the PLC to keep throughput predictable.
Require reason-coded setpoint writes with 30‑min auto‑revert; your ‘05:30’ handoff then sticks.
Use time-based setpoint windows on Train 2, with ‘05:30’ SCADA prompts — before hard locks?