How do I simulate a water-main break?

Open this page and use the live START Triage tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a water-main break from your own measurements.

Use case · powered by START Triage

START Triage for a water-main break

Simulate a water-main break live in your browser. This runs the real START Triage solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

START TriageLive

mass-casualty triage algorithm

Triage category

YELLOW

Delayed

Controls

Can the patient walk?

Is the patient breathing?

Presets

Respirations / min

24 /min

Perfusion (radial pulse / cap refill <2s)

Mental status (obeys commands)

Simple Triage And Rapid Treatment sorts mass-casualty patients in under 60 seconds each using RPM: Respirations, Perfusion, Mental status. Training reference only — follow your agency protocol and medical direction.

▶ Run in Python

Data Inspector

RR trigger>30/min

Perfusioncap refill 2s

StandardSTART adult

Triage criterion

RR = 24 \leq 30 \Rightarrow not RED by RR

Reading this result: RPM checks pass (RR 24/min, perfusion adequate, follows commands), so the patient is DELAYED (YELLOW).

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

About this simulation

The full START Triage tool models a water-main break with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with START Triage

START Triage for a house fire START Triage for a wildfire START Triage for a hazmat spill START Triage for a mass-casualty scene START Triage for a flood rescue START Triage for a building collapse START Triage for a chemical leak START Triage for a search-and-rescue grid

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Frequently asked questions

How do I simulate a water-main break?: Open this page and use the live START Triage tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a water-main break from your own measurements.