Diagnose and Repair Your Leaking Hot Tub in 6 Easy Steps
There are several areas where leaking may occur in spas. The source of the leaking may seem hard to find, but it’s not too difficult if you know where to start.
Components associated with spa leaking:
- Pump Wet End Seal
- Heater Assembly Manifold
- Slice/Knife and Gate Valves
- PVC Plumbing Parts & Tubing
- Jet Bodies
- Acrylic Spa Shell
Step-by-Step Repair Diagnostics
A) Disconnect all power to the spa. Inspect the equipment compartment. If leak is under the pump, this indicates a possible pump seal failure. If leak is detected, replace pump or install new seal, as appropriate.
B) Check all union fittings at hot tub pump and heater. Unions can even vibrate loose on a brand new spa during shipment, and should be hand tightened if necessary. If hand tightening is difficult, loosen pump mounting bolts, move components into alignment, then tighten unions and re-tighten pump mounting bolts. Never use a wrench to tighten spa unions.
C) Next, inspect heater, pressure switch and surrounding components. Replace any defective parts as indicated by leak. See Heater Testing
D) Inspect all of the valves. Repair or replace if leak is indicated. Knife style valves are sometimes bolted together and contain a gasket between the halves which can fail, particularly upon freezing or with prolonged poor water quality conditions.
Note: Valves on either side of the pump, when present, are installed at the factory as a convenience to service people (so that they do not have to drain the spa water to replace a pump). In reality, these valves more often do more harm than good, since they are a common source of leaks. Some hot tub owners choose to remove these valves if they have been a leak problem source.
E) Inspect all pipes, jets and connections for leakage. Repair or replace if indicated.
F) Examine spa shell for cracks. If cracks are present, patch with Plast-Aid Acrylic and PVC Repair Kit. This product forms a molecular bond with the plastic which is stronger than the PVC or Acrylic itself. Plast-aid out performs epoxy or resin compounds.
If you need help with any of the steps above, or are still having trouble fixing your leak, we are here to help. Speak with one of our technicians free of charge today: 1-800-823-3638 or email Parts@SpaDepot.com.