Use these five checks for a residential pool that remains open. A closed seasonal pool, a commercial facility or an unusual water feature needs a different operating plan and its own equipment instructions.
1. Check water before allowing swimming
Look for bottom visibility and measure free chlorine and pH. Use the current CDC residential testing routine, including checks between professional service visits. Record each result and the exact product added. Cool air and clear-looking water do not prove that disinfectant is adequate.
Do not replace measurement with a fixed “winter dose,” monthly shock or automatic algaecide purchase. Follow the label for the selected product and the measured pool condition. Never mix products or dissolve chemicals unless their label requires it.
2. Confirm water level and circulation
Keep the level appropriate for the installed skimmer and operating system. Watch for air in the pump pot or returns, changes in noise and loss of prime. Do not run a dry pump to see whether it recovers. Photograph a visible leak from a safe distance and record whether it occurs while running, stopped or both.
Reduce pump operation only after the flow needs of the heater, chlorinator, cleaner and other connected equipment have been checked. A fixed two-hour winter schedule is not justified solely by outdoor temperature.
3. Clear debris and monitor the filter
Remove surface debris and brush accessible surfaces using suitable tools. Do not stand on a slippery deck or reach near suction outlets. Pump and filter openings require the manufacturer’s shutdown and pressure-relief procedure.
Compare filter pressure with the established clean baseline at the same RPM and valve position. Record the filter model and gauge condition. Different filter types require different cleaning procedures, and an elevated reading alone does not tell you to acid-soak or replace cartridges.
4. Review protection before freezing weather
Identify whether freeze protection comes from the pump, the automation or neither. The archived IntelliFlo Thermal Mode monitors its drive and is not whole-system freeze protection. Confirm the sensor and the circuits controlled before relying on an app indicator.
Ask for an equipment-specific plan for an overnight freeze and a power outage. Avoid compressed-air winterization or improvised draining based on this open-pool article. A technician needs to account for trapped water, check valves, heaters and ancillary features.
5. Inspect barriers and arrange a targeted repair
Check that pool access barriers and gates function, and remove climbable objects nearby. Arrange a correction when a gate does not close and latch. General maintenance does not replace the applicable barrier rules.
For repair help, provide the model label, exact error code, repeated readings and operating conditions. A noisy pump, leaking pad or persistent chemistry problem should be investigated while its evidence is available, rather than hidden by changing several settings at once.
Get help with your actual equipment
Use the manufacturer manual library to identify the correct document. For a problem that needs inspection, request CAS service or call (480) 984-0300. Include the model label, test readings and what changed. Remote guidance cannot verify wiring, hidden leaks or a safe installation.