PVC pool covers are a cost effective and versatile solution for residential and light commercial use. Made from polyvinyl chloride (PVC) with added plasticizers for flexibility, these covers resist chemical degradation from chlorine and outdoor elements. Thicknesses range from 8 20 mils, with higher mil ratings offering better puncture and UV resistance. Standard sizes fit common pool shapes, while custom cutting accommodates unique dimensions. Anchoring systems use brass grommets and bungee cords or ratchet straps for secure fitting. PVC covers provide basic debris protection, sun blockage (reducing algae growth), and minimal heat retention. They are lightweight (5 10 lbs per 100 sq ft), facilitating easy installation and removal, and come in colors like blue, green, or black to blend with surroundings. Budget friendly and low maintenance (requiring annual cleaning), they are suitable for seasonal pool closure or as a secondary cover.