viral || sci || physics || on Instagram: "The Stem und Ergelit HT system is designed to repair and restore damaged sewer channel floors. When the base is destroyed and holes or sharp edges are present, GFK liners face a high risk of damage. The HT system solves this by filling all cavities with cement mortar and smoothing the surface to create an even, stable floor. This prevents further wear, ensures secure liner installation, and extends the lifespan of the sewer structure. The method works re