Municipal water is moved through every city’s system at a very high pressure. Every facility’s internal water meter has to reduce that pressure to 50-80psi to accommodate it’s internal plumbing. That process creates air. The air goes through the meter. Every company in the world is paying for that air as it passes through the meter-the meter can’t tell the difference. The CMP Water valve powered by AquaFlow pushes that air back up into the system so that you pay only for the actual water that you’re using. The valve is proudly made in America.