Modular covers from Geomembrane Technologies (GTI) provide effective odor and algae control and thermal protection. By covering the surface with a modular cover, the effects of wind and sunlight are reduced. Gases are held in suspension beneath the cover, limiting the emission of foul odors and the growth of algae. Because modular covers float, water level fluctuations can be accommodated. The covers’ flexible and buoyant design allows workers to safely walk on them. Cover panels can be opened or removed for basin cleaning and other maintenance. They are constructed with durable polyethylene materials and are designed to resist damage from chemicals, environmental exposure and UV rays. They are custom designed to meet unique project requirements and are suited for both aerated and nonaerated systems. 855/484-4630; www.gticovers.com.