I used properly sized wire nuts and a pigtail wire to connect the grounding wires in my outlet. So the wire nut has three grounding wires in it - one from the wire coming into the box, one feeding the outlet, and the other going on to the next outlet.
I’m told by my contractor that I cannot use wire nuts, that I have to use crimp connectors for the grounding wire. Is this true? I’ve got about 75 connections done this way so I’d like confirmation before taking the effort to change it all before the inspection. I want to do it right according to code and will change them if needed, but I thought wire nuts were an acceptable alternative for grounding wires??