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1 Gallon of Water =
 231 Cubic Inches (CI)
 8.35 lbs

1 Cubic Foot of Water =
 62.5 lbs
 7.481 Gallons
 1728 Cubic

Atmospheric Pressure at Sea Level =
14.7psi

1psi will raise a column of water =
2.304'

Column of water 1' high will exert =
.434psi

Maximum Theoretical Lift =
33.8'



Rectangular Container Estimation:
C = Capacity in Gallons
L = Length in Feet
W = Width in Feet
H = Height in Feet
7.481 = Gallons per Cubic Foot
 Example #1: C = 10'L x 20'W x 5'H x 7.481

 C = 7,481 Gallons

Estimating a Circular Container:
C = Capacity in Gallons
6 = Mathematically calculated constant
D = Diameter
H = Height in Feet
 Example #2: A cylindrical tank 30' in diameter and 15' in height. What is the capacity in gallons?
 C = 6 (30)2 x 15
 C = (6 x 900) x 15
 C = 5400 x 15
 C = 81,000 Gallons

