Pipe bursting replaces brittle clay or solid iron with the aid of pulling a new HDPE line using the ancient direction

https://www.bignewsnetwork.com/news/278962553/trenchless-sewer-line-installation-in-the-bay-area-what-homeowners-need-to-know

Pipe bursting replaces brittle clay or cast iron by using pulling a brand new HDPE line thru the old route, fracturing the normal pipe underground so you keep open trenches and expensive hardscape restore after the activity.