.. The irrigation system in the barn

It is powered by the generator.

Click on the "overnight mist spray irrigation".

Next, you need to enable all the sprinklers. This is a classic puzzle, where enabling a button will enabled all the adjacent buttons, too.

Imagine the buttons are numbered from left to right, top to bottom:

| 1 | 2 | 3 | 4 |
| 5 | 6 | 7 | 8 |

Reset, and then: 2,6,7,3

Check out that heap of leaves. Fix the pipe.