Tanks of the same type can be stacked. Using these in hand to transfer resources does not split the stack but instead carrys the effect across all tanks in the stack.

Example:

• Stack of 10 tanks of water
• Right click on a tank
• Tank is filled, 10 tanks are emptied
• Right click tank of lava
• Tank is emptied, 10 tanks are filled
• If one splits this stack they can place 10 seperate tanks of lava