Here's a link to the 5th day of testimony via g-Captain titled "Sins of Omission": click for update!

Evidently is was common practice not to test the regular pumps or their back-ups before going to sea, for concern about "wearing them out." The failure of the pumps and the crew's inability to get the back-up pumps top work were critical factors in the sinking of the Bounty.

Charley Noble