Sundance Spas
Internal Plumbing or Component Leak
Spa is leaking water inside the equipment bay; water collects under pumps or heater.
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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
Loose pump union on Sundance jet or circulation pump, Cracked heater manifold or union, Failed pump shaft seal, Split PVC plumbing or fittings
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker. Do not run the spa with an active leak; it can damage components and create electrical hazards.
- 1. Identify leak source: Use a flashlight to trace water back to its highest/earliest point. Dry the area and watch for fresh drips.
- 2. Tighten unions: Hand-tighten pump and heater unions. Do not overtighten with tools, as this can crack the fittings.
- 3. Inspect seals: If water appears at the junction between the pump housing and motor, the pump shaft seal is likely leaking and the pump should be rebuilt or replaced.
- 4. Check manifolds and fittings: Look for cracks in PVC manifolds, elbows, and tees. Small cracks may require cutting out and replacing the fitting.
- When to call a technician: Structural plumbing repairs and pump seal replacements are best performed by an experienced spa technician.
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Repair Difficulty
Hard
4/5
Required Part
Pump Union Gasket
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