On Tue, 08 Jul 2008 20:56:20 GMT, Short Wave Sportfishing
wrote:

3.25 X 1 X 200 = 695 pounds = 107 gallons rounded up from 106.92.

No offense, but I don't think so. :)

Something is amiss in the calculations. Your original estimate of 20
gph is right on the money using the rule of thumb of 1 gph for every
10 hp. At 6 lbs to the gallon that works out to 120 lbs per hour.