If no hops I dump down drain. If hops in trub i dump in back yard. If you don't want your dog dying from eating my hops keep him out of my yard, especially in winter, dog crap tends to build up in the winter. I am about to pull a Me, Myself, and Irene and start crapping in my neighbors yard.
Everything goes in the compost here, grains, hops, dry hops, trub from kettle and fermenter. I don't wash anything down the drain after reading a thread on here about someone's dishwasher drain clogging with hop gunk. Only problem now is my compost bin is overflowing!