Air bubbles are weak or uneven around the ring; some sections have no bubbles.

Safety first: Unplug the spa before inspecting air lines or the blower.

• Check air ring:
  • Inspect the air jet ring around the spa floor for visible blockages.
  • Gently massage the ring to dislodge debris.
• Flush air channels:
  • With the spa drained, use low-pressure water to flush the air ring through the blower outlet (if accessible), then allow to dry completely before reconnecting.
• Inspect air hose:
  • Check the large air hose between the blower and spa for kinks or crushing.
• Evaluate blower strength:
  • If airflow is weak even with clear hoses, the air blower motor may be worn and should be replaced.