The phrase "water-powered" reminds me of something I just learned in a
meeting: having moved from water-cooled to air-cooled mainframe hardware years
ago, we have now reached the point where our Windows servers need . . . yes,
you guessed it, water cooling! It seems a raised floor and controlled
tempreatures are no longer sufficient for racks of blades.
I realize this is not exactly uncommon, but, still, I can but shake my
head at the irony.
Jon
<snip>
I suggest a search using keywords like
+"sump pump" +"backup" +"water powered"
</snip>