Pipe bursting replaces brittle clay or solid iron by using pulling a brand new HDPE line due to the old course

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 new HDPE line using the ancient path, fracturing the original pipe underground so that you avert open trenches and highly-priced hardscape restoration after the process.