BuildCraft/BuildCraft — pull request #1832 by theZorro266 (2014-05-19 18:30:23+00:00)
Title: BuildCraft tanks always return false on "canDrain"

This should be obviously changed, because you can actually drain(...) from them.

Another issue would be, if those "can"-methods should actually look, if the tank is empty and if the requested fluid is the correct fluid, but that is not topic of this issue.