A 12 inch diameter round pipe will hold 4.89 UK gallons or 5.88 US gallons per foot.
1 acre = 43560 sq.feet. 1 foot deep water over an acre is 43560 cubic feet, which is 325851.4 gallons in 1 foot deep. If it is 1 inch deep (1/12 foot) then it is 27154.3 gallons in 1 inch deep.
18.264 gallons of water im not tottlaly shur but its my guess
It is 7.83 gallons per inch. .785x4x4x1=12.56 cubic feet. 12.56 cubic feet x 7.48 gallons per cubic foot=93.9 gallons per foot 93.9 gallons per foot / 12 inches per foot =7.83 gallons per inch.
2.75 Imperial gallons.
7,480.52 gallons for every inch of depth
About 1,246 Imperial gallons (UK) or about 1,500 US gallons.
The capacity of the tubing is 94.6 Imperial gallons, or 113.6 US gallons. There need not be any water in it!
One foot of 3 inch pipe will hold approximately 0.625 gallons of water.
A square foot equals an area 12"Wide x 12"Long x 1"Deep. A cubic foot equals an area 12"W x 12"L x 12"D. Therefore, a cubic foot contains 12 square feet. A cubic foot contains 7.48 gallons of water (trust me). You divide a cubic foot by 12 to get 12 square feet, therefore you would divide 7.48 by 12 to get the amount of water contained in 1 square foot. 7.48 divided by 12 equals .623 gallons. For every inch of rainfall there will be .623 gallons of water falling on every square foot.
12" x 12" x 1"= 144 cubic inches, which is equal to .623 gallons therefore a one thousand square foot roof receiving one inch of rain will catch 623 gallons.
Here is my take: 1 gallon of water equals 231 cubic inches 1 square foot, 1 inch tall equals 144 cubic inches (12"x12"X1") 1 square foot needs 0.624 gallons to equal 1 inch of cover (144 cubic inched divided by 231 cubic inches) 16 square feet would require 9.975 gallons of water to be covered 1 inch deep. (16*0.624) **Runsky**
The volume of water in a 4-inch diameter, 1-foot section of pipe is 0.6528 gallons of water.
225
17,000 gallons
A 12 inch diameter round pipe will hold 4.89 UK gallons or 5.88 US gallons per foot.
16 and 7/8