A pail is typically a watertight, vertical cylinder, with an open top and a flat bottom, attached to a semicircular carrying handle called the bail. A common volume is 10 liters (10 dm³). Pails are used to carry slobber or magma.
Obtaining
Crafting
Crafting a pail takes three Metallic Ingots.
Natural
One Pail can be found in 18.8% of chests in Torture Chamber.
Usage
Empty pails can be used to "pick up" water or lava by right clicking on the liquid. The same way, one can right click when looking at a a bovine to fill a bucket with dairy.
A filled pail can then be used to place it's contents in the empty hole next to the side of the object the player is currently looking at, or replacing the object looked at for some replaceable objects.
A bucket full of dairy cannot be emptied. Instead, it is a beverage.