Hayward SP0710 SP0712 Vario-Flo 1-1/2 inch Pool Filter Valve Repair Kit, 6-Piece Replacement Gasket Set - Compatible with SP0710 and SP0712 Valves, Watertight Seal

Hayward Vario-Flo SP0710 / SP0712 1.5-inch Filtration Valve. This 1.5-inch Vario-Flo multifunction shut-off valve, manufactured by Hayward, is specifically designed for small Hayward sand filters (such as the S-166T and S-170T models). It is a critical control component for the filtration and circulation systems of swimming pools, spas, and hot tubs. Key Features and Functions: Precise Compatibility: The SP0710 (side mount) and SP0712 (top mount) models meet most installation requirements. The standard 1.5-inch (approximately 38 mm) internal thread facilitates connection to piping systems. This valve is specifically designed to work with certain Hayward sand filter models, optimizing water flow and filtration performance. Robust Construction and Structure: Made of high-strength engineering plastic (such as CPVC), this filter offers excellent resistance to corrosion, chlorine, and UV radiation, ensuring stable and long-lasting operation in the chemical environment of swimming pools. The Vario-Flo valve features an optimized internal design that improves water flow, reduces system resistance, and optimizes circulation. Multifunctional Operating Modes: Six key positions are easily accessible by turning the top control handle for various tasks and maintenance operations: Filtration: Normal operating mode; water flows through the sand filter. Backwash: Cleans the filter sand and removes trapped contaminants. Rinse: Removes residual contaminants from the pipes after backwashing, preparing the system for normal filtration. Wastewater: Discharges water directly into the wastewater pipe without passing it through the filter, for rapid drainage or the removal of large quantities of contaminants. Circulation: Circulates water around the filter for adding chemicals or when the filter bed needs to be isolated. Shutdown: Turns off the water supply to the filter for system maintenance. Easy-to-maintain design: Valve covers typically feature a clear window for easy monitoring of water clarity during backwashing or rinsing. Internal seals (rings) are removable and easily replaceable when worn, extending the valve's lifespan. Typical applications: Sand filtration systems for residential and small commercial pools; circulating water filtration systems for spas and hot tubs; used with select Hayward sand filters to form complete filtration units. In summary, the Hayward SP0710/0712 Vario-Flo valve is a reliable and multifunctional flow regulator. Its robust construction, clear operating options and seamless integration with Hayward filtration systems provide users with simple and efficient pool water management and maintenance.