Don't know if this is the right place but. Here's an interesting tidbit:
From: "The Royal Navy: A History from The Earliest Times to 1900" By William Clowes, Vol. three, pg 337.
(In 1764 the Admiralty experimented with better pimps)
"It was found that whearas the old pump required seven men to pump out a ton of water in 76 seconds, the new pump, with but four men, would pump out a ton of water in 431/2 seconds; and that whearas two men could not move the old pump at all, two men could with the new pump pump out a ton of water in 55 seconds."
Seems to me that that's a lot of water!! I guess the sound of pumps cranking in the game is just about right!