Canal liners are not completely waterproof but are designed to significantly reduce water seepage. The level of impermeability depends on the material used and the quality of installation. Concrete liners are highly effective but can develop cracks over time, allowing some water to escape.
Clay liners provide a natural barrier but may experience minor seepage if not compacted properly. Geomembrane liners are among the most impermeable options but can be punctured or damaged, leading to localized leaks. While no liner is entirely waterproof, proper design, installation, and maintenance minimize water loss and enhance the canal's efficiency.
