Master Spas Water Feature Flow Restriction or Valve Misadjustment

Water feature (waterfall or fountain) not flowing or very weak

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Possible Causes

Waterfall valve closed or partially closed, Debris in water feature line, Air lock in feature plumbing, Dedicated feature pump not running (if equipped)

How to Fix / Troubleshooting

Safety first: Turn off power before removing any plumbing fittings.

  • Adjust valves: Locate and fully open the waterfall or water feature control valve on the spa top or in the equipment bay.
  • Check for kinks: Inspect visible hoses for kinks or collapse.
  • Flush line: With power off, disconnect the water feature line at the manifold and flush with a garden hose to remove debris.
  • Verify pump: If your Master Spas model has a dedicated water feature pump, ensure it runs when the feature is activated. Replace the feature pump if it fails to start.
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Repair Difficulty

Easy 2/5

Required Part

Water Feature Pump or Valve
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