Electric question for markfnw.
I opened up a receptacle to find a cluster **** of wires connected together.
The power coming in has four wires. The red wire is capped. It is aluminum.
There is a wire going on that is aluminum. No clue where it goes right now.
There is a second wire going out that is aluminum. It goes to another outlet.
There is a wire going out through the wall that is copper. It connects to at least one outside outlet, maybe two. I haven't figure that out yet. This one had to be replaced because it has turned black.
There is a wire going out to a light switch. It is copper.
It appears as if they pigtailed some of the aluminum neutral wires.
It appears as if they pigtailed some of the grounds.
It looks like they put those purple thingies on the black (hot) wires and pigtailed the copper.
The box that holds this mess also has a receptacle in it. It has a neutral from the light switch connected to it, a neutral from one of the purple thingies that is attached to the incoming wire, and a black/hot wire attached to a purple thingie that is pigtailed with several other hots.
I doubt that I could possible put all this back together the way I found it. It would be nice to simplify things. One thing I can do if it helps is replace the aluminum wire that goes to another receptacle with copper. Easy enough to get to. I don't know if I can get to the other outgoing aluminum, although as I type this it seems like it would make life much easier if I could.
I am probably not explaining this correctly but if you can decipher this mess, let me know.