Assuming the pipe is 15 inches = 1.25 feet in diameter,
Volume = pi*D2/4*L = 12.27 cubic ft, approx.
1 cu ft = 7.4805 gallons so volume = 12.27*7.4805 = 91.800 gallons.
As many as you like, depending on how long the pipe can be.
That depends on how long the pipe is.
This pipe will hold 1,468.8 gallons of water.
6.24 US gallons.
0.255 gallons per foot of pipe. A 10 ft long pipe that size holds 2.55 gallons.
It depends how long it is.
78.34 gallons per 480 feet in a 2-inch pipe.
A four-foot diameter pipe that is five feet long has a volume of 470 gallons.
A pipe this size holds 1,642 (1,642.12358) US gallons.
10.4 gallons.
146.9 gallons of water.
A 2 ft wide pipe, 1 foot long, will contain 23.5 gallons (US).A 2 ft wide pipe, 1 foot long, will contain 23.5 gallons (US).A 2 ft wide pipe, 1 foot long, will contain 23.5 gallons (US).A 2 ft wide pipe, 1 foot long, will contain 23.5 gallons (US).