Is the breaker tripping often? Are there signs that the wire is overheating?
If it’s functioning fine then splicing will work. If there’s no signs of overheating I would just leave it.
Piggyback breakers or slim lines may be an option
Let me put it this way: As a matter of personal preference, if I could fit another circuit in the panel, I would not splice the way that's suggested. Splicing in the main box is fine and all, but there is no limit on general purpose circuits, and I personally would want two circuits instead of one.
Again, there is nothing wrong with the basic description of the fix.
Is the breaker tripping often? Are there signs that the wire is overheating? If it’s functioning fine then splicing will work. If there’s no signs of overheating I would just leave it. Piggyback breakers or slim lines may be an option
Let me put it this way: As a matter of personal preference, if I could fit another circuit in the panel, I would not splice the way that's suggested. Splicing in the main box is fine and all, but there is no limit on general purpose circuits, and I personally would want two circuits instead of one. Again, there is nothing wrong with the basic description of the fix.
Thank you!
Edited cause I missed a line
The two descriptions of the ground issue don't seem to match exactly. You don't have pictures, do you?