I'm adding an additional electrical outlet to the backside of a wall which has the existing outlet I want to tap into. The new outlet will be directly behind the existing outlet. The current outlet has three sets of romex wires coming into the box, so I'm assuming that the 3rd set is going to a wall light switch.
Is it safe to tap into this outlet and pigtail four sets of wires? All of the wires are connected to the outlet rather than being pigtailed. Two sets of wires are using the backstab holes and one set is using the screws on the side. There is still a set of screws on the other side, but I'm thinking it would be easier (and safer) to pigtail the four sets of wires with a 6" lead going to the outlet. The bare ground wires are already pigtailed using a couple metal crimps, which I would replace with a wire nut.
Is it safe to tap into this outlet and pigtail four sets of wires? All of the wires are connected to the outlet rather than being pigtailed. Two sets of wires are using the backstab holes and one set is using the screws on the side. There is still a set of screws on the other side, but I'm thinking it would be easier (and safer) to pigtail the four sets of wires with a 6" lead going to the outlet. The bare ground wires are already pigtailed using a couple metal crimps, which I would replace with a wire nut.