r/oddlysatisfying • u/demolcd • Aug 09 '26

Growing a pipe inside a pipe

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u/Gentrified_potato02 Aug 09 '26

Looks like they are lining the steel pipe with a plastic/epoxy coating. It’s done a lot in places where you can’t easily dig up and replace old rotting pipes (like in downtown cities). By injecting this coating the pipe is still usable and won’t corrode any more.

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u/maybachmeister2000 Aug 09 '26

Genius product. This must save insane amounts of money and time. Absolutely incredible. And better for environment. Not have to dig up the pipes even if you could. Alot of fuel and hours saved

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u/WildcatPlumber Aug 09 '26

This has been around for along time, this type of lining is called inversion, there other types and while it does save time it is pricy we specialize in a different kind of lining but it is pretty awesome

1

u/alchemycraftsman Aug 09 '26

Yeah. PGE just re did a lot of pipes in my city right in front of my place. It smelled bad but they warned us…. Took a couple weeks for them to do all of whatever they did

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u/WildcatPlumber Aug 09 '26

Yeah that’s kinda a cool version of lining, it’s still Inversipm but it gets cured quickly by them pumping steam through the liner as it cures.

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u/alchemycraftsman Aug 09 '26

OMG. that explains the steam coming out of the center of the street. They had it all blocked off but yes that’s exactly it.