SP1056 | Hayward Hydrostatic Relief Valve | 1.5"
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OEM Hayward Hydrostatic Relief Valve SP1056 is engineered to protect inground pools from hydrostatic pressure buildup during draining. Made with high-strength ABS material, this valve features a spring-loaded, self-cleaning O-ring seal that delivers dependable, leak-resistant operation. Compatible with both 1.5" and 2" threaded pipe sizes, it fits most standard pool configurations. Regular inspection and replacement during pool drainage is recommended to help avoid structural damage caused by pressure from groundwater beneath the pool shell.
Highlights
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Prevents Uplift from Groundwater: Relieves upward hydrostatic pressure to safeguard inground pools during draining procedures.
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Durable ABS Material: Constructed from non-corrosive, high-impact ABS for long-term performance under variable pool conditions.
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Fits 1.5" and 2" Threads: Compatible with multiple plumbing setups, making it suitable for a broad range of pool construction types.
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Leak-Resistant O-Ring Design: Spring-loaded seal with a self-cleaning O-ring offers consistent and tight closure to prevent backflow or leaks.
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Check at Every Drain Cycle: Recommended for inspection or replacement during each draining to preserve pool structure integrity.