Extending the Life of an Existing Pipe
When an existing pipe is at the end of its useful life, rehabilitation is often the most cost-effective way to keep the system operable. A smooth walled liner pipe installed within an existing host will often increase the hydraulic capacity due to improved friction characteristics. Although rehabilitation is recommended prior to the end of the host’s useful life, tunneling techniques can occasionally be applied to reestablish the pipe if a section is collapsed.
