Quote:
Originally Posted by gap
Thank you for the link mookiemookie, good website that one 
It refers to US subs drain system anyway. Indeed I can be wrong, but I doubt battery powered pumps could keep the pace with heavy floodings on larger ships.  |
Well you were correct in a way - it was related to the diesel engines, as those were the dynamos for charging the batteries. But in any case, the bilge pumps were electrically operated on U-boats also - here's a description of how they rigged the U-505's bilge pumps to work without having engines or a full battery charge:
http://uboat.net/forums/read.php?20,59020,59029