Gravity oil skimmers facilitate the removal of light-floating liquid from closed-roof tanks. They are commonly used in wastewater treatment, oil refining, and other industrial processes. Gravity skimmers are cost-effective and energy-efficient. Potential Engineering's gravity skimmer is custom-designed to fit various sizes and types of tank roofs. We offer a wide range of configurations, the flexibility of fixed & flexible pipe, and guided directions to ensure no roof strikes.