Rob R. wrote:New project - my garage has always been powered via a single 20 amp circuit breaker. This includes all lighting, a full size refrigerator, and a pool pump. Honestly I am surprised the breaker has never tripped when using a vacuum, etc. The wire feeding it is ancient, and there are signs of overheating in one of the junction boxes. Time to split the load on two circuits, and eliminate the old wire & splices. I am also going to add an outlet and lights to the attic over the garage. Hoping to have this wrapped up in the next week or so.
Still haven't finished this. Pulling wire through the basement, through the foundation, and up through a stairwell in the garage took longer than I expected. Had multiple obstacles, and I pulled LOTS of old nails and staples out along the way. I scrounged through my boxes of stuff that dad gave me years ago and came up with a 100' roll of 12-3, a new 20 amp double breaker, and a few junction boxes. Some of the areas are pretty crowed with other wire runs, so I decided to make things a little easier (and less expensive) by using up the 12-3 rather than buying and pulling two pieces of 12-2. The end result will be a multi-branch circuit with each side of the garage on its own 20 amp circuit.
I sure wish I knew who wired some of the things in my garage, I would like to whip them with a piece of BX cable. I found one 4" octagon junction box with 7 pieces of 12-2 going into it, the wire is packed in there so tight that I don't even know how they got the cover on. The wire that feeds the outlet for the pool pump had the ground cut off, and it was a back-stabbed outlet.