I had a 20A circuit that was run to a work bench built by the previous owner of my home. I ended up replacing the work bench and replacing the circuit, with new THHN wiring all run through EMT conduit.
From the breaker box, I have ground, neutral and hot wires coming out of it which go to my first junction box. The box has a GFCI outlet. I then go a few feet horizontally to another junction box with a duplex outlet; repeating to the next box and the next.
I have my ground wire from the breaker box, connected to the ground screw on my junction box. This is also pig-tailed to the GFCI outlet, and then to another ground wire which leads to the next box. This next box is then grounded with the incoming ground wire and is also pig tailed to the outlet as well as the next outgoing ground wire.
Basically, I’m just realizing that since I am using all EMT conduit, I could technically just ground the first junction box/GFCI outlet with the ground wire from the breaker box right? Then for the rest of the junction boxes/outlets, the boxes would already be grounded so I could have saved myself from running a separate ground wire and just connect the outlet to the box correct?
My circuit is already wired up as previously described. Is it wrong of me NOT to have just relied on the circuit being grounded from the first junction box? Is it fine that I ran a separate ground wire to each box? I imagine it’s fine but I definitely could save some space in the box since the 12 gauge wires take up so much real estate. Any reason to open everything up and remove those ground wires or just leave it as is?