As many as you like, depending on how long the pipe can be.
3780 gallons
This pipe will hold 23,500.7 gallons of water.
0.255 gallons per foot of pipe. A 10 ft long pipe that size holds 2.55 gallons.
The pipe can hold up to 6,762.39 US gallons of water.
This pipe will hold 1,468.8 gallons of water.
Volume of the pipe = 4.896 gallons
That depends on how long the pipe is.
2.61153 gallons.
4.08 US gallons.
A 10-inch x 300' pipe holds 1,224 gallons.
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.