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How Insituform PPL® is Installed
 Step One: The reinforced Insituform® felt tube is saturated with a thermosetting resin, then carefully packaged for transport.
 Step Two: The Insituform® tube is positioned in the pipeline using water pressure to turn the tube inside out. This procedure is known as inversion.
 Step Three: The continuous hydrostatic pressure of the inversion process results in a close fit with the host pipe.
 Step Four: Following inversion, the thermosetting resin is cured by circulating hot water throughout the tube. Once cured, the pipe is cooled, ends are cut and sealed, and the pipe is returned to service.
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