Have a 1950's single story home with 2 wire only (no grounds). In the den which doubles as the master, there is wood paneling that I am planning to replace with drywall. Prior to doing so, I have been thinking that it would be a good time to run some new wires (3 wire with grounds), so that in the future it would make a rewire that much easier. One of the walls is against the kitchen, so I could also get easy access to half of those. Could I run new wire into the walls, into a new junction box for each in the attic, and then connect from there into the existing wiring run in the attic? Then, when rewire job comes around, the work for that room (and half the kitchen) would be just up in the attic. As other rooms are renovated, could do similar. Thoughts, advise? Any code issues? Doing the wiring is no problem for me, but I dont know any of the codes. I have just read before that junction boxes have to be 'accessible' (which they would be from the attic).

Would really appreciate some assistance in wiring up an old single feed shower pump - Stuart Turner RG50 Stripped it out of a renovation property and didn't pay any attention to how it was wired in, my bad! The flowswitch is attached and connected, no worries there I have 2 cables going in - one 3 core round containing standard live neutral earth and then a flat 4 core containing red, yellow and blue plus bare copper earth I remember that the pump was switched but not much else, can anyone help me wire this up please as i'm at a loss :( I am presuming that the round 3 core is the power supply and the flat 4 core is for the switch - perhaps it's blue common - red L1 - yellow L2 - earth :confused: Any help most gratefully received Thanks Jon