Pipe Bursting – Pipe bursting is a trenchless repair method that involves breaking and expanding the existing pipe while simultaneously replacing it with new high-density polyethylene (HDPE) pipes. This is accomplished by pulling a head, also known as a “bursting head or bullet,” through the old pipe. The head fractures the existing pipe while dragging and laying the new pipe behind it.
2. Slip Lining – Slip lining is a trenchless rehabilitation technique that installs an epoxy liner into an existing sewer lateral. This essentially creates a “pipe within a pipe.” It’s important to note that slip lining is generally not approved by the Bay Area sanitary district authorities.
3. Cured in Place Pipe (CIPP) – Cured in Place, also referred to as CIPP, is the technical term for slip lining. A resin-saturated liner is inserted into the existing pipe, which is then expanded and cured into place by heating the liner.