Commercial pools don't survive on the residential playbook. Automated chemical feeders, ORP and pH controllers, code-compliant ventilation, and NEC Article 680 electrical safety — this pillar is the commercial operator's reference.
The commercial stack
A typical commercial pool automation stack looks like this, from the pool outward:
- Sensors: ORP probe, pH probe, flow switch, temperature probe.
- Controller: PLC or microcontroller reading sensors and driving relays.
- Chemical feeders: peristaltic pumps (liquid) or gas regulators (chlorine gas), erosion feeders (tablets).
- Heating: gas heater, heat pump, or geothermal — usually with modulating control.
- Ventilation (indoor): source-capture extraction at water surface, plus general dehumidification.
- Telemetry: remote monitoring, alarm outputs to a building automation system or operator phone.
What changes for a commercial operator
- Chemical feed is metered, not thrown in from a scoop.
- Documentation is required — log entries are a legal artifact.
- Accessibility and safety codes are enforced, not optional.
- Failure modes get people sick — so redundancy matters.
