Calculations

How to calculate liquid gallons in a tube. (PVC 4″ by 7′)

Vol = Pi x r² x L

Pi = 3.14159 X radius” ² X Length”

3.14159 X 2″*2 X 72″

= 1055 ci

1 gal = 231 ci

1055 / 231 = ~4.5 gallons

1 Gal Water = 8.33#s 1 Gal Gas = 6.2#s 1 Gal Propane = 4.1#s

4.5 gal water = ~37.5 #s

I was thinking of putting water tubes on roof of truck cap for extra water capacity. The truck has an 8′ truck bed.