Pool water checks: temperature, chlorine, pH, and clarity. Pool water must be safe for every visitor. Measurements before opening and throughout the day show that disinfection is working and that the pool was closed promptly if readings went outside the limits.
The electronic pool water log lets the technician enter readings on a phone at the poolside. Deviations are immediately visible, and the inspection log prints with one click.

The same file the service provides to an inspector. The data is fictional: the organization “Ромашка” and five employees.
Required fields: Date, time and pool; Water temperature; Free and combined chlorine, pH; Clarity and number of visitors; Responsible person. An empty field is equivalent to an incomplete log for an inspector, so use a dash deliberately and include an explanation.
Every shift: make the entry on the day of the event. Do not backdate entries: uniform dates and identical values are precisely how inspectors identify record keeping done only as a formality.
SP 2.1.3678-20. Include the regulatory reference on the title page so the inspector can immediately see why the log is kept.
Yes. SanPiN 2.3/2.4.4282-26 does not require paper: the important points are being able to see who made an entry and when, and preventing unnoticed retrospective changes. For an inspection, print the electronic log for the required period.
Inspectors usually request records for the last 12 months, so one year is a practical minimum. Keep logs connected with a food poisoning investigation or a complaint until the proceedings are closed.