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My trick for fishing wire through finished walls without opening drywall
Had a job last month in an old house in Portland where I needed to run a new circuit to a third floor bedroom. Chasing it through the existing pipe was impossible and I didn't want to cut 10 holes. Tried using a fiberglass rod with a magnet taped to the end and a strong magnet on the other side of the wall. Worked way better than I expected on the first try. Anyone else use magnets to guide wire through tight spots?
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the_lee16d ago
Yeah "powerful magnet can pull things loose" is real, I had a buddy who was trying to fish a wire in his garage and his magnet yanked a whole pipe hanger right off the joist. He spent the next hour trying to get it back on while holding a flashlight in his teeth. That old knob and tube stuff is sketchy enough without adding more trouble.
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You might want to be careful with strong magnets near old knob and tube wiring, some of those old houses still have it and a powerful magnet can pull things loose.
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