Although players are able to fill a cauldron with a water bucket we are unable to collect it from one even when it's completely full, this is either a bug or an oversight as are able to fill bottles
Environment
Windows 7
Although players are able to fill a cauldron with a water bucket we are unable to collect it from one even when it's completely full, this is either a bug or an oversight as are able to fill bottles
Windows 7
Intended.
While not an official source, the MC Wiki states that "water and lava can be obtained only by using the bucket on a source block; shallow, running fluids cannot be collected."
Source blocks don't include cauldrons.