Lay-Z-Spa Weak Water Circulation

Lay-Z-Spa circulation seems weak; water barely moves at the outlet even though filter mode is on.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Clogged filter cartridge, Debris partially blocking inlet/outlet ports, Airlock in circulation pump, Worn or failing circulation pump impeller

How to Fix / Troubleshooting

Safety first: Unplug the spa before removing filters or disconnecting the pump.

  • 1. Clean or replace filters: Remove the filter housing and cartridge. Rinse thoroughly or replace with a new Lay‑Z‑Spa filter if dirty or deformed.
  • 2. Check inlet/outlet ports: Use stopper caps to remove the pump from the liner. Inspect and clear any debris from the ports.
  • 3. Remove airlocks: Reattach the pump, then slightly loosen the filter housing cap while the pump is off to release trapped air. Retighten and run filter mode.
  • 4. Listen for pump noise: If the pump is unusually loud or rattling, the impeller may be worn or damaged.
  • If circulation remains weak: The circulation pump may be failing and will need professional replacement of the pump/heater unit.
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Repair Difficulty

Medium 3/5

Required Part

Filter Cartridge
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