RFPEW Task 1.1.H(M/G)

Monitor reverse osmosis plant

MMA Method

In order to satisfy NVIC 07-14 Task 1.1.H(M/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 motor or gas turbine vessel at sea or at anchor in clean water, on a simulator, or in a laboratory,

the candidate monitors a reverse osmosis plant.


Note 2 Note 6 May be used as substitute for Task No.

1.1.H(M)

The candidate:

  1. Checks plant’s operational status;
  2. Checks sea water feed and high pressure pump suction and discharge pressures as appropriate;
  3. Checks pre-filter pressure drops;
  4. Checks membrane bank pressure drops;
  5. Verifies and checks distillate flow to proper tank;
  6. Observes the position of the 3-way valve to ensure it is not tripped, unless in the case of high salinity;
  7. Takes water-meter reading;
  8. Checks distillate salinity; and
  9. Notifies the watch engineer of any unusual or unsafe conditions