Hayward Hydrostatic Relief Valve, 1-1/2" | SP1056 Pool Lifts Prevent backflow in your pool

Prevent backflow in your pool return line with reliable one-way protection

Don’t settle for anything less—ensure your spa stays in top shape with this precision sensor

8 amps for focused linear heat coverage

With improved water circulation and durability

Waterway focuses on long-term serviceability

Hayward Hydrostatic Relief Valve, 1-1/2" | SP1056 Pool Lifts Prevent backflow in your poolWhat This Part Is Used For The SP1056 hydrostatic relief valve is a 1 1 2 inch valve used in compatible Hayward pool floor installations. It allows groundwater pressure to equalize beneath the pool shell. Why This Part Matters Hydrostatic pressure can cause structural stress if not relieved. A failed valve can allow unwanted water intrusion or prevent proper pressure equalization. Maintaining a functional valve supports pool shell integrity. Key