Story achievement
This is part of convincing the pig to be our martyr.
Get the bucket from the butcher shop.
Open the hatch on the barn and go to the basement.
Get the rope from the basement.
Use the rope and the bucket with the farm's well.
Go to the barn basement again.
Use the bucket on the lever, wait untill the lights A1, A2, B1, B8 are lit, then take the bucket.