I have his drain cleaner but can't find him anywhere.

Did you check out the open barn?

thanks I had Missed that location
I was in there but didn't turn that direction.

Most of the chapter he's in the locked room upstairs, near the room with the torture devices. If you didn't give him the drain cleaner in the barn, you can go to that locked door at the end of the chapter and give him the drain cleaner then