Bilge Transfer - Pump-Down Time
Time to pump down an engine-room bilge-holding tank to the next transfer-destination, given bilge-pump capacity and tank level.
Volume to transfer
15.00m³
Transfer time
1.50h
Formula, assumptions, and limits
$$t = \frac{\min(V_{src}, V_{dst\_free})}{\dot V}$$
Keep MARPOL Annex I Reg. 17 Oil Record Book entries for every transfer. Bilge water contaminated > 15 ppm must go through OWS or ashore - never direct.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $V_{src}$ | Source tank liquid | m³ | soundings |
| $V_{dst\_free}$ | Destination free space | m³ | soundings |
| $\dot V$ | Pump flow rate | m³/h | pump curve |
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