Pool Water Test Log: Chemistry

Pool Water Test Log is a simple pool chemistry log for any test kit or strip. Type in what you measured: free and total chlorine, pH, total alkalinity, calcium hardness, cyanuric acid, salt, bromine and water temperature. Every reading turns green or red against your own target ranges, and every chemical you add is kept in the same history. No strip scanner guessing your colours, no account, no brand pushing its products, and it never tells you how many pounds of anything to add. It is your record, kept your way.

KEY FEATURES
• Pool water test log — fill in only what your kit measures; every reading is optional
• In-range colours — each reading is compared with the pool's own target range as you type
• Editable targets — starts from common ranges for your pool type and sanitizer (chlorine, salt water or bromine), and you change them to match your equipment manual or pool professional
• Chemical log — what you added, how much, in ml, litres, gallons, pounds, kilograms, tablets or scoops, with an optional cost in your currency
• Pool chemistry trends — one chart per reading, placed by date, with your target band drawn in
• Timeline — tests and chemicals together, grouped by day, colour-coded at a glance
• Test day reminder — every few days at the time you choose; it counts from your last test, so logging a test moves the next reminder by itself
• Test strip photo — take a picture or pick one from your gallery and keep it with the test
• PDF report — a clean printout of your water history to show your pool store
• Pools and hot tubs — a pool, a spa, or both, each with its own targets and history
• Works offline — your log stays on your phone; export a backup file whenever you like

WHY THIS POOL LOG
• Any brand, any kit — drops, strips or a digital tester; you type the number
• No scanner mistakes — you read the kit, the app keeps the record
• No dosing advice — the app records what you added; the product label and your pool professional decide how much
• One-time Premium option instead of another subscription

PERFECT FOR
• Pool owners who test weekly or twice a week during the season
• Hot tub and spa owners on bromine or chlorine
• Salt water pool owners watching salt, pH and stabilizer
• Anyone who takes a water history to the pool store

FREE AND PREMIUM Free: one pool or spa, unlimited tests and chemical entries, charts, timeline, reminders, and a PDF report with a watermark after a short ad. Premium (one-time or subscription): unlimited pools and spas, clean PDF reports, CSV export for spreadsheets, the chemical cost report, and no ads.

The target ranges are common guidance, not professional advice. Always follow the label on every chemical and never mix pool chemicals.