Was trying to find more on historical Bounty leakage rates. Found this of G Captain site forum, interesting:
"It's interesting that an (PSC?) inspector in Europe required them to purchase that extra gas-powered
pump. That means they identified the two major weakness, watertight integrity and inadequate de-watering systems.
Port State Control in Europe is very good. They know what to look for. (If it was in fact a PSC inspection.) If they had been subjected to another PSC inspection in Europe and the
pump was found in poor condition likely would have gotten nailed hard. The failure or inability to fix previous problems is seen as a problem in and of itself."
This must be refering to the last trip bounty made to Europe.
More information:
http://www.imo.org/blast/mainframe.asp?topic_id=159