.. Finding the metal detector Carla threw away

Look out of the window. What do you see?

Yup. It is a pool of cat litter. The metal detector is there. Go down and take the right from the bottom of the stairs. You will find the cat litter pool.

Doing it by hand would be gross enough...

Use your scythe on the pool. Manny will lift the metal detector up. ( You have to point in different positions in the pool to find the detector. )