Mechanical checklist
Cooling tower: weekly water treatment check
ASHRAE 188-aligned weekly round: free chlorine, conductivity, basin condition, drift eliminators. This is the Legionella program record insurers ask for.
10 steps · 2 photos asked for · 2 readings recorded
Every step, in order
This is what a technician is asked, one question at a time, on the phone.
- 1
Scan the cooling tower tag
Scan the tag · needed
- 2
Free chlorine residual
Dip test from the basin sample port.
Reading in ppm · needed
- 3
Conductivity
Reading in µS/cm · needed
- 4
Photograph the test result
Photo · needed
- 5
Basin clear of visible biofilm, algae, scale, and debris?
Yes or no · needed
- 6
Cooling tower chlorine residual out of range. Water treatment attention needed.
Tell somebody · needed
- 7
Drift eliminators intact and seated?
Yes or no · needed
- 8
Photograph the basin condition
Photo · needed
- 9
Treatment chemical inventory
Pick one · needed
- 10
Notes
Written answer · needed
What this looks like on a phone
The checklist above is a workflow, not a document. Which changes four things.
- One question at a time, so nothing is skipped
- The tag is scanned, so the record cannot be filed against the wrong unit
- A failed check raises tracked work with the photo already attached
- The report exists the moment the last question is answered
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