Renolit, makers of weld-in-place PVC membranes for pool liners, offers new ALKORPLAN RELIEF for the 2023 season. This multi-purpose, slip-resistant membrane has a category C slip resistance rating with a transformative texture that gives pools the look and feel of gunite yet is soft on toes and eliminates the maintenance headaches of gunite. Available in 6 different colors—from white and sand to blue and grey to match any architectural design. 70-mil thick reinforced membrane for new pools or renovation.