A hot water recirculation system is designed to deliver instant hot water throughout the home. However, without proper hydraulic balancing, even a well-installed system can operate inefficiently, create uneven performance, and shorten equipment lifespan. That is why at Rainbow Plumbing and Hydronic Center, we use Caleffi Automatic Flow Balancing Valves in our domestic hot water recirculation designs. Because performance depends on precision. Caleffi Balance Valve The Problem