AquaRest Spas Internal Plumbing or Component Leak

Spa is leaking water inside the equipment bay; puddles form under the AquaRest cabinet.

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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 heater union on AquaRest heater tube, Cracked pump housing or union, Leaking slice valve, Split vinyl hose or jet body

How to Fix / Troubleshooting

Safety: Turn off power and avoid standing water near electrical components.

  • Step 1 – Identify leak source: Remove the equipment access panel and use a flashlight to trace drips while the spa is filled. Check heater unions, pump unions, and slice valves first.
  • Step 2 – Tighten unions: Hand-tighten any loose heater or pump unions. Do not overtighten to the point of cracking.
  • Step 3 – Repair or replace fittings: For cracked unions or pump housings, drain the spa below the leak level and replace the damaged part with AquaRest-compatible fittings.
  • Step 4 – Check jets and hoses: If the leak is not in the equipment bay, remove side panels to inspect jet bodies and vinyl hoses for splits. Use PVC cement and clamps or replace hoses as needed.
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Repair Difficulty

Hard 4/5

Required Part

Heater Union Kit
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