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the_pinguin t1_iy9j5cf wrote

Reply to comment by I_AM_NOT_A_WOMBAT in Garbage Disposal wired directly into Dishwasher - fixing wiring and adding outlets by TonyFugginMontana

Motion sensors use the ground wire to complete a circuit in the absence of a neutral wire. It's not ideal, but it does work.

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I_AM_NOT_A_WOMBAT t1_iy9muy0 wrote

True, but older homes often don't have ground wires either. Ours built in the late 50's didn't have grounds.

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the_pinguin t1_iy9naj8 wrote

Oh I know. My House was built in 1900 according to records, but I suspect earlier.

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