Most are two prong receptacles, but some are 3 prong. I tested the voltage on them. The 3 prong I tested showed about 60v from ground screw to the small slot-HOT and60v from the ground screw to the large slot(NEUT). Also, 120v from the small slot to the cold water pipe.
The two prong showed 101v from the large slot to the radiator pipe, and 0v from the small slot to the radiator pipe (wrapped a piece of copper wire around the corroded valve stem).
Now, the large slot is supposed to be neutral and 0 volts to the ground/waterpipes/etc. and the small slot is suppsed to be hot.
Question is 1) Would it hurt to rewire the recepticles to large- neutral, small-hot. I'm imagining a situation where one day I plug something in with the ground and hot shorted... What should I check and look out for?
and 2) what's the best way to run the ground wire? I think it's tacky to run a 12ga (black insulated) from the green screw on the new outlet outside the outlet cover, along the baseboard to the radiator. How is this *supposed* to be done?