Free interactive academy

DO2 Academy Pumper operations

Pumper operations: hydraulics, pump engagement, water supply, multiple lines, drafting, relay, standpipe/FDC, foam, troubleshooting and practical-test preparation.

Training-track naming: FireOps Calc uses “DO2 Academy” as a learning track. Certification names and skill sheets vary by AHJ/state. Use your current department/state documents for the official test sequence and pass/fail criteria.
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Lessons + drills

Learn it. Perform it. Check it off.

Each module pairs a short lesson with a station drill and a knowledge check. Mark it complete only after you can explain and perform the objective.

1Pump theory & pump-panel orientationKnow what the pump is doing before touching the throttleNot complete

Lesson

The operator should understand the water path from tank/intake through the pump to each discharge, and recognize the function of common gauges, valves, pressure-control systems, primer, drains, cooling features and tank-fill/tank-to-pump controls.

Centrifugal fire pumps create flow by imparting velocity to water and converting that energy to pressure. Pump performance depends on available supply, engine power, pump condition and discharge demand.

Know this cold

  • Trace tank-to-pump, intake, pump and discharge flow paths
  • Know compound/intake vs discharge gauge information
  • Understand pressure governor or relief-valve purpose
  • Recognize cavitation and overheating warning signs
  • Know manufacturer-specific pump engagement sequence
Knowledge check: What does a falling intake pressure with increasing discharge demand most directly tell the operator?
Complete the lesson, perform the drill, then mark the module complete.
2Fireground hydraulicsPDP, friction loss, nozzle pressure, elevation and appliancesNot complete

Lesson

Build every pump-pressure problem from components: Pump Discharge Pressure = Nozzle Pressure + Friction Loss ± Elevation + Appliance/System Loss. Use department hose coefficients, nozzle data and SOP allowances.

For friction loss, the common training relationship is FL per 100 ft = C × Q², where Q is flow in hundreds of GPM. Total hose friction loss is then multiplied by hose length in hundreds of feet.

Know this cold

  • PDP = NP + FL ± EP + appliance/system loss
  • Q = GPM ÷ 100
  • Elevation rule of thumb: about 5 psi per 10 vertical feet
  • Calculate each branch separately in split-line/wye operations
  • Use actual department coefficients when available
Knowledge check: A hose stretch is made longer but flow, nozzle and elevation stay the same. What must generally happen to PDP?
Complete the lesson, perform the drill, then mark the module complete.
3Pump engagement & tank-to-hydrant transitionGet water moving, then make the supply sustainableNot complete

Lesson

Engage the pump only using the apparatus manufacturer and department sequence. Confirm pump engagement, establish tank water when appropriate, set the initial discharge safely, and monitor tank level and engine/pump indications.

When transitioning from booster tank to a pressurized source, coordinate the hydrant opening, manage the intake valve, maintain discharge pressure, refill the booster tank as appropriate, reset pressure control, and continuously watch residual pressure.

Know this cold

  • Parking brake/transmission/pump engagement sequence
  • Confirm pump-in-gear indicators
  • Open and close valves gradually
  • Maintain discharge pressure during supply changes
  • Do not allow water supply changes to surprise the attack crew
Knowledge check: During a tank-to-hydrant transition, what is the operator trying hardest to avoid at the attack line?
Complete the lesson, perform the drill, then mark the module complete.
4Attack lines, wyes & master streamsCalculate the demand and control multiple dischargesNot complete

Lesson

For multiple discharges, calculate the pressure requirement of each evolution, pump to the highest required discharge pressure, and gate lower-pressure lines as needed. Track the total GPM because supply capacity and pump load depend on combined flow.

Wyes and remote master streams add complexity because supply hose, appliance losses, branch hose and nozzle demand all interact. Break the evolution into sections instead of trying to memorize a single shortcut.

Know this cold

  • Highest-pressure discharge usually governs pump setting
  • Total GPM matters to water supply
  • Calculate branches independently
  • Master streams require correct nozzle pressure/flow and secure deployment
  • Communicate before major pressure changes
Knowledge check: Two discharges require 145 psi and 175 psi at the pump. What is the normal strategy?
Complete the lesson, perform the drill, then mark the module complete.
5Water supply & hydrant managementRead residual pressure before the system runs out of marginNot complete

Lesson

A reliable pump operator watches static/residual intake information, hydrant behavior, supply-line condition and changing incident demand. The number on the discharge gauge means little if the intake side is collapsing.

Hydrant-flow and percent-drop concepts help estimate remaining system capacity, but they are decision aids—not permission to drain a system below department or utility limits.

Know this cold

  • Static vs residual pressure
  • Monitor intake pressure as lines are added
  • Recognize kinks, partially open valves and supply restrictions
  • Estimate additional capacity conservatively
  • Coordinate additional supply before conditions become critical
Knowledge check: Why does residual intake pressure matter when additional lines are opened?
Complete the lesson, perform the drill, then mark the module complete.
6Drafting & relay pumpingMove water when the hydrant cannot do the jobNot complete

Lesson

Drafting requires an airtight suction path, suitable water depth/quality, correct strainer placement, priming and careful monitoring of lift and pump performance. Small air leaks can prevent or destabilize a draft.

Relay pumping is a pressure-and-flow problem across distance. Each pumper must provide enough discharge pressure to overcome supply-hose friction and elevation while delivering the desired intake pressure to the next engine.

Know this cold

  • A draft must be airtight
  • Understand lift and site limitations
  • Prime only as required by the apparatus procedure
  • Relay PDP includes supply-line FL, elevation and target intake pressure
  • Communicate changes across the relay
Knowledge check: What is one of the most common reasons a pumper cannot establish a draft?
Complete the lesson, perform the drill, then mark the module complete.
7Standpipe, sprinkler/FDC & foam operationsSystem support requires more than ordinary attack-line mathNot complete

Lesson

Standpipe and sprinkler support should follow building preplans, system design information, department SOP and the specific fireground assignment. Elevation, system allowances, hose/nozzle demand and FDC supply configuration all matter.

Foam operations require matching concentrate, percentage, device flow range, inlet pressure and application method. Follow manufacturer instructions and local policy; flush equipment after use as required.

Know this cold

  • Standpipe: account for hose/nozzle, elevation and SOP/system allowance
  • FDC: secure a reliable water supply and correct connection
  • Sprinkler support: understand purpose and coordinate with command
  • Foam: correct concentrate/type/percentage/device/flow
  • Flush and return equipment to service properly
Knowledge check: What should determine the pressure used for a real standpipe/FDC operation?
Complete the lesson, perform the drill, then mark the module complete.
8Troubleshooting & DO2 practical prepKeep water moving when conditions changeNot complete

Lesson

Troubleshooting begins by identifying whether the problem is on the supply side, pump itself, or discharge side. Use gauge trends, sound, vibration, engine load, valve position, tank level and crew reports to narrow the problem.

A strong practical candidate can calculate, operate and explain. Build a repeatable sequence for pump engagement, tank flow, hydrant transition, multi-line operations, standpipe/FDC, relay/draft and shutdown.

Know this cold

  • Low intake: investigate source, hose, valves and demand
  • Low discharge: verify throttle/governor, valve, line, nozzle and calculation
  • Overheating: maintain cooling/circulation per apparatus procedure
  • Cavitation: reduce demand and/or improve supply
  • Practice full evolutions under instructor-created changes
Knowledge check: The pump begins to cavitate while flowing several lines. What is the best immediate concept?
Complete the lesson, perform the drill, then mark the module complete.
Printable practical prep

Four-stage skills checkoff

These are original FireOps Calc training checkoffs, not official state JPR sheets. Adapt the scoring column to your AHJ.

Practical 1 — Inspection / setup

Run your full apparatus readiness sequence from memory. Use the local check sheet, identify defects, adjust the cab/mirrors, secure the apparatus, and verbalize safety-critical items.

  1. Brief objective and safety limits.
  2. Candidate performs without coaching.
  3. Evaluator records pass / needs work.
  4. Debrief one strength and one correction.

Practical 2 — Core evolution

Perform the central skill of this academy with no coaching. The evaluator should score safety, sequence, communication, control, and final operational result.

  1. Brief objective and safety limits.
  2. Candidate performs without coaching.
  3. Evaluator records pass / needs work.
  4. Debrief one strength and one correction.

Practical 3 — Change of conditions

Repeat the evolution while the instructor changes one condition. The goal is to see whether you understand the system rather than merely memorizing steps.

  1. Brief objective and safety limits.
  2. Candidate performs without coaching.
  3. Evaluator records pass / needs work.
  4. Debrief one strength and one correction.

Practical 4 — Full mock test

Combine the major skills into one continuous evaluation. Stop the evolution for any safety concern, then debrief and repeat weak sections.

  1. Brief objective and safety limits.
  2. Candidate performs without coaching.
  3. Evaluator records pass / needs work.
  4. Debrief one strength and one correction.
Randomized final review

25-question practice exam

The exam draws randomly from a larger question bank. A score is for study feedback only and is not a certification result.

Next step

Use the tools under pressure

After the academy, move into timed calculator work, visual pump scenarios, drill-night evolutions and instructor-led practicals.

Standards

Verify official requirements

NFPA 1002 driver/operator professional qualifications were consolidated into NFPA 1010. State and departmental certification systems can use their own editions, prerequisites and skill sheets. Verify before testing.