Aboard the DEEP DRILLER, to use the drill water pump to supplement the bilge pumps, it is necessary to open valves 26 and __________.

Correct Answer: Option C — 28

System alignment for emergency dewatering using the drill water pump on the DEEP DRILLER mandates opening valves 28 and 26 to bridge the drill water manifold with the bilge system suctions per vessel piping schematics.