Cooling tower water treatment log

Recording tool

The readings you took and the treatment you applied — flagged against a range you set, from your own program.

Why this page prints no chemistry

A cooling tower is the piece of building equipment most often named in outbreak investigations, and it is therefore the last place a free template should be guessing at numbers. Conductivity bands, halogen residuals, inhibitor levels and dip-slide limits belong to a treatment program written for your tower — against your make-up water, your metallurgy, your load and your local rules — by somebody qualified to write it. Almost always that is your treatment vendor.

So the tool asks whose program it is, records what you measured, and flags anything outside your range in those words. It makes no statement about Legionella risk or control. That is not modesty; it is the only honest position for software that has not read your program.

The program, and the log the program calls for

A reading only means something because a program decided to take it, at that point, against a limit somebody set. The water management plan builder is where that program gets written — the systems, the flow diagram, the control points and who is responsible — and this is where its cooling tower readings get recorded. Neither states a limit.

One tower, one history

Register the tower once and it is the same equipment everywhere else in the product: its cleanings and repairs sit on the equipment service record, work raised against it is a work order, and the treatment vendor's visits show on the vendor service log with their certificate of insurance beside them.

A record of readings you took. CompliMaint publishes no chemistry target, biocide dose, residual limit or testing frequency, makes no statement about Legionella risk or control, and makes no determination that any water is safe or that any facility is compliant. Those belong to the water treatment program written for your tower and to your state and local rules. Everything runs on your device.

Questions people ask

What should the chemistry targets be on a cooling tower?
This tool does not say, and that is the most important thing on the page. Targets for conductivity, pH, halogen residual, inhibitor and microbiological control belong to the water treatment program written for your specific tower by whoever is qualified to write it — usually your treatment vendor. They depend on the make-up water, the metallurgy, the load and the local rules. Put your program's range in and readings outside it are flagged as outside your range.
Does this tool help with Legionella control?
It records readings and treatment; it makes no statement about Legionella risk or control and publishes no figure related to it. A cooling tower's role in Legionella control is set out in a water management program, and writing that program — the systems, the flow diagram, the control points, the limits and who is responsible — is a separate exercise. The water management plan builder is the tool for that; this is the log the program calls for.
How often should cooling tower water be tested?
This tool states no frequency. How often readings are taken, by whom, and which readings, are set by your treatment program and by state and local rules that differ significantly — some jurisdictions regulate cooling towers directly and some do not. Record what you took and when; the schedule is yours.
Can a treatment vendor's service report be recorded here?
Yes — there is a “taken by” on every entry, so a vendor's visit and an operator's own reading sit in the same history and stay distinguishable. Chemicals added are recorded in your own words. Nothing here doses anything or recommends a product.