I recently disconnected a hot tub (replacing it with a green house) and I want to use the same dedicated circuit to power the greenhouse equipment.
Only problem is, there is an extra wire! I have a red and a black wire that are connected to the juction box, a green wire that is grounded, but there is also a (much thicker) white wire was (if I remember right) wired directly to the tub (by passed the junction box entirely).
What the heck is this white wire?
What would I do with it if I wanted to wire in an outlet?
Thanks for any help! I can post a pic of the juction box if it would be of any help...