Organize drain-cover documentation and entrapment-safety checks.
Enter realistic measurements, observed conditions, or documented equipment information. Review the result as a planning estimate and adjust assumptions to understand what drives it.
This is a screening checklist, not a compliance decision. Pool barriers, gates, diving configurations, and suction outlets require current product documentation and approval by the authority or qualified professional responsible for the installation.
Confirm units before calculating. Record dates, weather, meter readings, equipment settings, photographs, and product labels when they affect the decision. A single estimate is less useful than a repeatable baseline.
Follow manufacturer instructions, current product markings, local codes, and official emergency guidance. Consult a qualified pool professional when structure, electricity, gas, suction entrapment, diving, flooding, or severe weather is involved.