Pump housing or hoses rattle and knock when the pump turns on or off.

Safety First: Unplug the pump before adjusting valves or hoses.

• Open valves slowly: When starting the pump, open any valves gradually to avoid sudden surges.
• Secure hoses: Use additional clamps or supports to prevent hoses from whipping when flow changes.
• Bleed air: Prime the pump and allow air to escape from the return line before fully opening flow.
• Check fittings: Tighten loose fittings that may be banging against the pool wall or frame.