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.
A pipe this size holds 1,642 (1,642.12358) US gallons.
A four-foot diameter pipe that is five feet long has a volume of 470 gallons.
78.34 gallons per 480 feet in a 2-inch pipe.
It depends how long it is.
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).
10.4 gallons.
146.9 gallons of water.