What the log stores
Poolsheet keeps the day to day chemical record for commercial pools and spas. You can enter free chlorine, pH, and spa readings, then keep those notes together for later review. If you want a closer look at the workflow, see features and the chlorine and pH guide.
Who it is for
This pool log app is for people who need a simple place to write chemical checks for busy aquatic facilities. It can help staff keep a record on the phone instead of a paper stack. There is no shared account. If you want setup help, start with guides or the waitlist page.
What Poolsheet does not do
Poolsheet is not a health department, a lab, or a substitute for local rules and site procedures. It stores your notes, but it does not tell you that the water is safe. For a quick tour of the current tool set, visit features.
Free sheet and timing helper
If you want a simple paper style backup, use the free pool log sheet. The page also includes a timing helper note so you can match your routine to the model code guidance on the page. For chemistry context, see pool chlorine and pH.
Chlorine and pH windows in the model code
- pH of the water: 7.0 to 7.8 (section 5.7.3.4.1).
- Minimum DPD free chlorine when the venue is not using cyanuric acid: 1.0 ppm (section 5.7.3.1.1.2.1).
- Minimum DPD free chlorine when the venue is using cyanuric acid: 2.0 ppm (section 5.7.3.1.1.2.2).
- Spas: minimum DPD free chlorine 3.0 ppm (section 5.7.3.1.1.2.3).
- Maximum free chlorine: do not exceed the product label (section 5.7.3.1.1.5). This page does not print a numeric chlorine ceiling.
- Cyanuric acid at aquatic venues stays at or below 90 ppm (section 5.7.3.1.3.2). If cyanuric acid is 300 ppm or higher, the venue stays closed until remediation (section 5.7.3.1.3.3).
Sources: 2024 CDC Model Aquatic Health Code, 5th edition (PDF) and CDC notes on operating public pools. Poolsheet is not part of the CDC.
Follow your local health department code. Poolsheet is not a health authority, not a pool operator license, and nothing here means the water is safe. The CDC Model Aquatic Health Code is voluntary guidance, not your local rule.