Pool water log check

Check pool water readings such as pH, chlorine and temperature against the limits entered. The server marks deviations and days without a reading. No legal statements.

Input

Result

A table of readings with deviations marked, the counts, lists of values above and below the limits, missing values and days, a fixed notice and a signature line.

Water readings are taken every day, but deviations are easy to miss. This tool compares every value with the limits entered for the facility, also per pool, and lists values above and below them, missing values and days without a reading. The limits come only from the input, because the rules differ by country and type of pool. It gives no dosing advice and makes no statement on hygiene or bathing safety.

Your texts, pages and images are processed on our own servers in the EU. Trust Center

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Who it is for

Hotels, saunas, swimming pools, spas and pool attendants.

Typical uses

Check a week of readings before filing them.
Use separate limits for a whirlpool and a main pool.
Find days on which nobody measured.

Example

Input

Pool or facility: Lindenau Spa Hotel Period: 4 to 6 May 2026 Tested by: M. Berg Readings: id,pool,date,time,ph,free_chlorine,combined_chlorine,water_temp,note W1,Indoor pool,2026-05-04,08:00,7.2,0.5,0.1,28.0, W2,Whirlpool,2026-05-04,08:10,7.4,0.9,0.15,36.5, W3,Indoor pool,2026-05-05,08:00,7.8,0.4,0.25,28.5,Many guests on the evening before W4,Whirlpool,2026-05-05,08:05,7.3,,0.1,37.0,Test strip for chlorine used up W5,Indoor pool,2026-05-06,08:00,7.1,0.2,0.1,27.5, Limits: id,pool,parameter,lower,upper G1,,ph,6.5,7.6 G2,,free_chlorine,0.3,0.6 G3,,combined_chlorine,,0.2 G4,Whirlpool,free_chlorine,0.7,1.0 G5,Whirlpool,water_temp,,37 Readings per day: 1 Notes: The filter of the whirlpool was backwashed on 5 May.

Result

A table of readings with deviations marked, the counts, lists of values above and below the limits, missing values and days, a fixed notice and a signature line.

A fixed example, shortened. Real results are AI-generated: please check them.

Price and limits

Price: usually 1–3 credits
Available with: Free, With package
Input limit: One page with up to 40,000 characters of HTML

Privacy

Processed on our own servers in the EU (Poland). Inputs and results are deleted after 7 days (Free) or 30 days (packages), or right after you see the result if you choose not to store them. Images are deleted right after processing.

In the API

Tool name: pool_water_log. Create a job with POST /api/v1/jobs and fetch the result with GET /api/v1/jobs/{id}. You find your API key in your account.

curl -X POST https://do4u.eu/api/v1/jobs \
  -H "Authorization: Bearer d4u_…" -H "Content-Type: application/json" \
  -d '{"tool": "pool_water_log", "url": "https://example.com/"}'

Full API documentation →

Questions and answers

Who does the calculation?

The server calculates all sums from the table. The AI only writes the text and cannot change the figures.

Which limits does the tool use?

Only the limits entered. A row with a pool applies to that pool, a row without a pool to all others. Without a limit, a value is shown but not assessed.

Does it say what to dose?

No. It gives no dosing advice and makes no statement on hygiene or safety. Those decisions stay with the operator and the technical staff.

Is my text stored?

Only as long as needed: 7 days on Free, 30 days with a package – or not at all if you choose not to store it. Processing happens on our own servers in the EU (Poland).

Can I use the result right away?

Results are AI-generated. Please read them before you publish or send them.