10.3.1 Unless otherwise specified in Section 10.4,
a vessel should be provided with at least two bilge pumps, one of
which may be power driven situated in two separate spaces. All pumped
spaces should be capable of being drained after the failure of one
pump.
10.3.2 For vessels carrying cargo exceeding 1000kg
or towing or carrying out lifting operations (excluding own anchors)
in addition to the above the bilge pumps should have a combined capacity
of not less than 140 litres per minute. One pump may be power driven
and the other(s) should be hand pump(s) suitable for the suction lift
head and of capacity not less than 70 litres per minute.