Hayward Hydrostatic Relief Valve, 1-1/2" | SP1056 Pool Lifts while the included natural river

while the included natural river rocks ground the display for an organic finish

By allowing your heater to be recessed into a flat ceiling

Waterway focuses on long-term serviceability

Commonly used in residential and commercial pump strainer assemblies requiring this exact part number

Hayward Hydrostatic Relief Valve, 1-1/2" | SP1056 Pool Lifts while the included natural riverWhat 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