5 Common Signs Your Pool Needs a Liner Replacement 1. Significant Fading or Discoloration Over time, UV exposure and heavy chemical use cause your pool liner to lose its original vibrancy and look dull. 2. Visible Wrinkling and Stretching If you notice new wrinkles or areas where the vinyl is stretching, the liner has likely lost its elasticity. Stretched material often pulls away from the pool edge, making it difficult for the bead to stay secured in its track. 3. Brittle Texture and Cracking A