Circulation pump is noisy, rattling, or running hot

Safety first: Turn off power before touching the pump or opening unions.

Steps to quiet a noisy circulation pump:

• Check water level: Ensure the spa is filled to the proper level to prevent air ingestion.
• Bleed air: Loosen the circulation pump unions slightly to release trapped air, then retighten.
• Inspect for debris: If accessible, open the pump wet end and check for debris in the impeller.
• Monitor noise: If noise persists and the pump housing is very hot to the touch, the bearings are likely failing.

When to call a technician: Bearing replacement is usually not economical; replacing the entire circulation pump with a Strong Spas-compatible unit is recommended.