Slow melt phosphate, a specially formulated corrosion inhibitor, works by gradually releasing orthophosphate and polyphosphate compounds into water systems to form protective barriers on metal surfaces. The controlled dissolution rate allows for consistent dosing over extended periods, making it ideal for closed systems and drinking water applications. The dual-action formula enables the polyphosphates to sequester minerals like iron and manganese, preventing staining and scale formation, while orthophosphates create a protective film on pipe surfaces. This coating helps prevent corrosion of various metals including copper, lead, and steel, effectively reducing metal leaching into the water supply. The slow-release characteristic ensures optimal treatment levels are maintained without excessive chemical addition, providing cost-effective corrosion control with minimal maintenance requirements.