/diy/ - Do It Yourself

>>2793208
>I would rather not do it by hand if I can save myself some effort.

It's going to take soapy water to release the fly shit.
Your hand will have to hold the drill, so it's not 'hands-free'
Just get some version of picrelated and a bucket.
It will be much easier and faster than a small rotating brush which won't hold any cleaning solution.