about 100-110
At 6.25 gal/min it will take 5.12 minutes.
12
12
You must divide 750 by 4.17 which gives you 179.86 (rounded up). This is how many seconds it will take. Then you must divide 179.86 by 60 because there are 60 seconds in a minute. The Answer is 2.99 minutes. About three minutes.
12 mins.
90 gallons
1000 Minutes require to fill 10000 gallon pond
400 gallons. http://www.treehugger.com/clean-technology/how-many-gallons-of-water-does-it-take-to-make.html
Aproximately 12,000 gallons
2110 gallons
20 gallons
40