So I have a water meter in our basement, connected to the city line via copper (it's also our electrical ground). From the meter is decades-old galvanized leading to a leaky shutoff (which I plan to replace). This galvanized goes forth through the house, with more recent connections to rooms made with PEX.
I moved the kitchen water line yesterday and we had a whole-house pressure drop. I believe corrosion has dislodged and become stuck in the line, so I plan to replace the remaining cold water galvanized with PEX.
My question with this: is there a reason to avoid PEX coming from the indoor meter? I'm thinking not, because it's cold water (I know I need 18" copper going into the water heater). I'd rather redo the line in PEX and go into a manifold if I can. But, I can do copper if there's a compelling reason to do so. I plan to check with the city on the meter itself, but thought I'd ask you-all first. :)