Pump Manual - Field Math and Rounding

Question 1

Volume of a cylindrical container (in cubic feet)

Answer 1

= .7854 x D^2 x H

Question 2

Calculating volume of water in hose lines in cubic inches

Answer 2

Volume = .7854 x D^2 x (L x 12)

• Have to multiply L by 12 to convert from feet to inches

Question 3

Calculating gallon capacity of containers

Answer 3

Gallon capacity = 7.48 x V

Multiply the volume by 7.48 because there are 7.48 gallons in a cubic foot

Question 4

Calculating gallon capacity of hose

Answer 4

Gallon capacity = V / 231

*231 is the number of number of cubic inches in a gallon

Question 5

Calculating water weight of containers

Answer 5

Find the volume of the container in cubic feet and multiply by 62.4 (weight of 1 cubic ft water)

Weight (rectangular container) = (LxWxH) x 62.4

Weight (cylindrical container) = (.7854 x D^2 x H) x 62.4

Question 6

Calculating weight of a hose line

Answer 6

Weight = # gal x 8.34