Experts generally recommend moving away from "brands" and moving toward "specs" (specifications). Instead of looking for a mass-marketed brand name at a local store, expert pond owners look for a specific material, in this case RPE (Reinforced Polyethylene), because of its proven engineering specs. For example, a 20-mil RPE liner offers twice the strength of the leading 45-mil EPDM brands at only 1/3 the weight.
By focusing on the material itself—its internal scrim, HP-OIT ratings, and puncture resistance—you can ensure you are buying a professional-grade solution, not just a colorful box at a retail center.
