With this technique, a new, smaller pipe is inserted inside a deteriorated pipe to extend the life of important water infrastructure. Spiniello has completed a wide variety of sliplining projects, including sanitary sewer mains, potable water, industrial pipelines, wastewater collection systems and more.

Any new pipes used in sliplining need to be smaller than the host pipe. The new pipe is first laid out above ground, then pulled through an excavated area into the host pipe. The new pipe then gets winched to manhole or exit pit through the host pipe. Materials for new pipes can include polyvinyl chloride (PVC), polyurethane (HDPE and HE) and more.

Once the pipe is in place, the space between the new and host pipes needs to be sealed. Spiniello uses a special water-tight sealing solution to ensure no leakage gets through to damage the new pipe.