Maybe a better question would be how soon do I need to fix this. I have an outbuilding served by a 50A 2-pole breaker in my main panel. It is connected to my house by 2 overhead wires on a messenger cable with the messenger being the ground. The outbuilding has another outbuilding connected to it by a 8 foot breezeway (roof only) and the 2nd outbuilding only has overhead lights but I would like to add some receptacles. The first outbuilding has one receptacle, overhead lighting, and some outdoor lighting. To further complicate things, The sub panel also powers my pump house which is about 100' away on the other side of a creek. The pump house is connected to the sub panel by 12/3 UF cable run underground and under the creek. The pump house itself has a 4-space sub panel that I installed mostly so I could switch the pump off without killing the pump house lights. The only ground rod is at the house at the service entrance. It appears that now, this should be all 4 wire runs. All of this wiring was done in the '70s so it may have been ok then. Eventually, I want to replace the overhead run with underground cable and will run 4-wire cable then. Should I make this a higher priority to bring it up to current standards? What about the barely attached 2nd outbuilding? Does it need its own ground rod? And does the pump house need a ground rod? It already has a 4 wire cable running to it. Any guidance I could get would be appreciated. Thanks.

I have 2 3 way switches and 1 4 way switch controlling several lights. The switches worked just fine before changing out a J box with a light. I screwed myself and pulled the wires without labeling. Now with all my configurations either: The lights stay on and won't turn off The lights turn on and only dim when the switch is flipped No Lights Come on The circuit blows If it helps I know where all the wires go and what is in each box. Can anyone help?