RFPEW Task 1.1.G

Charge a potable water pressure tank with compressed air

MMA Method

In order to satisfy NVIC 07-14 Task 1.1.G , MMA students must:

NVIC Method

See NVIC method.

STCW Competence Knowledge, Understanding, and Proficiency

Carry out a watch routine appropriate to the duties of a rating forming part of an engine-room watch.

RFPEW-A1.2 Engine-room watchkeeping procedures

Condition Behavior Standard

On a vessel, on a simulator, or in a laboratory,

the candidate charges a “waterlogged” potable water pressure tank with compressed air.


All The assessment applies to all RFPEW endorsements.

The candidate:

  1. Correctly connects the compressed air hose from the service air header to the pressure tank;
  2. Opens the appropriate valves, charge air into the pressure tank, while observing the water level and allowing the potable water pump to cycle on and off;
  3. Closes the appropriate valves, secure from charging air into the pressure tank when the potable water pump no longer short- cycles and the pressure tank level cycles between normal parameters;
  4. Correctly disconnects and stow the compressed air hose from the service air header to the pressure tank; and
  5. Takes proper action to prevent safety and pollution violations.