this post was submitted on 12 Jan 2024
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What do you think the water lines are made out of?
Um, copper actually.
In your house, sure, but I'll bet if you go check the water main coming to your house it's plastic. If it's super old then it's steel but it sure isn't copper.
It would maybe be cast iron. Not steel. Plastic isn't typically used here.
Yeah may be iron aswell. Those old ferrous pipes looks pretty bad on the inside aswell. I'd be quite surprised if there wasn't any plastic pipes used but I guess that's possible.
Interestingly the whole circuit for the building was redone a few weeks ago. There was no plastic used at any point to the mains (except for a temporary link while waiting for one of the trenches to be dug). As I said, it's just not used here.
It is used for parts of the outgoing flow though, but most of it is still cast iron as well. I'm not in the US, so YMMV.
My house has copper pipes for the most part but the water main coming to my house is plastic. Older main lines are often steel but as they age and get replaced they're replaced with plastic and in new houses it's mostly PEX/composite pipes aswell.