A weekly log for test readings and chemicals added. Type your company and week at the top if you like, then print it or save it as a PDF and fill in the rows by hand.
| Date | Pool / customer | Free Cl (ppm) | Comb. Cl (ppm) | pH | Total alk. (ppm) | Calcium hard. (ppm) | CYA (ppm) | Salt (ppm) | Chemicals added (type & amount) | Tech initials |
|---|---|---|---|---|---|---|---|---|---|---|
Typical ranges: free chlorine 2–4 ppm · combined chlorine as low as possible · pH 7.2–7.6 · total alkalinity 80–120 ppm · calcium hardness 200–400 ppm · CYA 30–50 ppm · salt 2,700–3,400 ppm (salt pools). Targets vary by pool type, sanitizer, and local health code.
Keep one sheet per week, per route or per pool. After testing, write each reading in its column, then list every chemical you added with the amount, like "1 gal liquid chlorine, 16 oz muriatic acid". Initials show who serviced the pool if a customer or inspector asks later.
Combined chlorine is total chlorine minus free chlorine. Leave the salt column blank for pools without a salt system. To see whether the readings add up to balanced water, run them through the free pool LSI calculator.
Click "Print or save as PDF", then pick Save as PDF (or Microsoft Print to PDF) as the printer in your browser's print dialog. The sheet is set up to fit one landscape page.
At minimum: the date, the pool, each reading you tested (free and combined chlorine, pH, total alkalinity, calcium hardness, CYA, and salt for salt pools), what chemicals you added and how much, and who did the work. Commercial pools may have extra logging rules from the state or county health department.
No. The log sheet is free to print and use, with no sign-up.
In Skimlog, technicians log readings on their phone and every reading is saved with the service, so you can pull up any pool's chemistry history. Try it free for 14 days.
No credit card required