Want to install a 3 way sw from house to detached garage. Want to use the old wire (4- one hot, one white and 2 black)that run under groundnder from house to garage. How can i do this?? Thanks
Electrical Supplies - Gb Electrical - 1 30 Amp Ground Fault Circuit Breaker
Answers & Comments
Not sure this went through the first time...so here it is again.
You will not have to tape the white wire since you already have 2 black wires...but I would put a piece of tape on one of the black wires so you will know which one you are working on.
The picture didn't go through...so here is link...