The answer to this question will depend on your location, pool use and your pool needs. Mesh covers weigh much less than a solid cover, which can make mesh covers easier to install at larger sizes. However, if your pool season is relatively short, and you still desire relatively clean water every opening season, a solid cover may be the choice for you. A solid cover does require proper tension for optimal drainage. Each material has its own advantages, depending on your pool and geographic location. Mesh allows water to drain into the pool as the ice or snow melts. Mesh blocks 92% of sunlight to inhibit algae growth. Solid Covers block virtually 100% of the sunlight, preventing all algae from growing. See our Mesh vs Solid chart on our main covers page for more information.