About 326 and a half imperial gallons, which would be around 436 US gallons.
5.5 gallons per 15 feet of 3-inch pipe.
65.3 gallons or 8.7 cubic feet.
A 72-inch pipe 16 feet long holds up to 3,384.1 US gallons of water.
111 gallons of water.
14.7 gallons of water.
78.34 gallons per 480 feet in a 2-inch pipe.
12,239.9 gallons of water per 3,000 feet.
20.81
1.6 gallons of water.
6.5 US gallons of water.
45.9 US gallons.
Up to 1,795.2 gallons of water.