So I live in Michigan (which of course affects code) and I have a bunch of two prong outlets in a house that I own. If I want to convert these to be 3 prong outlets is it still up to code to replace them with GFCI's with a label "No Equipment Grounding"? The outlets I am referring to are just in bedrooms so not by a source of water like the bathroom / kitchen.
Will the outlet still pass the outlet checker tool?
I know the tool is checking for a ground and probably still won't find one with just the GFCI there but I guess it isn't necessarily a requirement to pass that tool is it?
So if just using a GFCI is not sufficient, recently all of my copper pipes were replaced with PEX; however, the main line coming into the house to the internal water meter is still copper. Can I join all of the grounds to this? Seems like the perfect ground as it goes deep into the earth and then out to the city.