Level 2 diamond farm. it no longer needs an input of energy because it produces it itself. You must be careful when activating it: before turning the knob to let the water enter the tank, check that all the cogwheels are placed and follow the instructions on the signs. Before turning the knob, remember to activate at least 2 Blaze Burners using a bucket of lava and to insert the Blaze Cakes in the appropriate chest