How to Stop Leaks in Hot Tubs


A small leak in a hot tub can result in the loss of a large amount of water over time. The method of repair varies based on what part of the hot tub is leaking. In some cases, the only way to stop the leak is to replace the pump, heater, pipe or a fitting. Sometimes, however, the repair of the leak requires no significant part replacement.

Things You'll Need

  • PVC/Acrylic sealant
  • Wrench
  • Food coloring
  • Replacement pump seal
  • Turn off and unplug the hot tub. This is required to help determine the location of the leak as well as for safety purposes.

  • Look for puddles of water underneath the pump, fittings or pipes. This indicates if one of these parts is leaking.

  • Disconnect the pipes to the pump if it is the part leaking.

  • Remove the front plate of the pump.

  • Replace the pump seal with a new one.

  • Reattach the front plate and pipes to the pump.

  • Tighten the fittings with the wrench if one of the fittings is leaking.

  • Apply PVC/Acrylic sealant to the hole of a leaking pipe.

  • Check the hot tub shell for leaks. Leaks in the shell almost always develop next to the hot tub jets. Place a drop of food coloring near each of the jets. You can tell a jet is leaking if the food coloring is sucked out through the side of the hot tub near the jet.

  • Drain the water in the hot tub so the jets are dry.

  • Apply PVC/Acrylic sealant around the jet to seal the leak.

  • Refill the hot tub.

  • Reconnect the hot tub power.


  • Photo Credit Jupiterimages/Comstock/Getty Images
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