Floating Cover Systems for Evaporation Control, Algae Elimination & Odor Reduction

We are one of the very few floating cover manufacturers to independently test our recycled plastic content to verify it is free of Bisphenols (BPA, BPS, BPF), Phthalates, and PFAS (Per- and Polyfluoroalkyl Substances).

We use exclusively HDPE (High-Density Polyethylene) — the same food-safe plastic used to manufacture food containers and drinking water pipes. Whether your application is a drinking water reservoir or an industrial lagoon, AWTT covers will not leach harmful chemicals into the environment.

AWTT purchases raw material from the top-tier resin producers in the United States. Our virgin HDPE is considered the highest-grade available worldwide — the same resin grade used in food and beverage packaging.

We offer both virgin and recycled content depending on customer requirements, but we never compromise on source quality. Every AWTT cover is food-safe, drinking-water-compatible, and environmentally inert — regardless of the application.

AWTT has been in business for over 20 years. Our 10-year warranty is not a marketing claim — it is a commitment we have honored since inception. We also include spare covers with every order, something no other manufacturer offers.

Be cautious of competitors who advertise similar lifespans while using significantly less material and cheaper resin. A thinner cover made from lower-grade plastic cannot physically deliver the same longevity — regardless of what the sales sheet claims.

AWTT is the only floating cover company ever recognized by the U.S. Department of Energy — receiving a 2017 Sustainability Award for our Rhombo cover at the Savannah River Site, which saved 55 million gallons of water per year.

While many of our patented designs have been copied by competitors, AWTT is the original creator of the self-ballasting hexagonal floating cover and most modular cover formats in use today. Copies may look similar on the outside, but they do not match our attention to engineering detail or material quality.

AWTT is the only company in the world that designs its floating covers in-house and manufactures them on custom-built, purpose-designed equipment used exclusively for producing floating covers — nothing else.

Every competitor we are aware of manufactures on generic injection molding or blow molding equipment shared with other household and industrial products. Generic equipment cannot match the precision, wall thickness consistency, and material distribution that purpose-built tooling delivers. This investment is costly — but it is why AWTT covers outlast the competition.

Wind resistance is the most critical performance factor for any modular floating cover. Insufficient wind resistance causes covers to stack, pile up, and leave large areas of the liquid surface exposed — defeating the purpose of the installation entirely.

AWTT has invested considerable time and capital in controlled wind testing and outdoor field validation. Our published wind ratings — from 35 MPH to 130+ MPH — are verified through physical testing at scale.

Our Hexprotect® AQUA and Rhombo Hexoshield® covers have survived four named hurricanes — Florence (2018), Dorian (2019), Nicole (2022), and Helene (2024, Category 4) — with zero damage and zero repairs. All covers remain in active service today. They are the only modular floating covers known to have survived hurricane-force conditions.