How to Fix A Hot Leak Tub

Turn off the power to the hot tub. If the leak is in the pump or plumbing, it will usually leak more with the pump turned off. Completely unplug the hot tub because there may be standing in puddles of water while you work.

Open the door to the equipment compartment, where the pump is located. The door will typically be located on one of the outside side walls of the hot tub. Check the area around the pump for moisture. If you find water, remove the pump and check all of the seals. Replace any seals you find to be faulty. In extreme cases, you may have to replace the pump itself.

Examine all of the valves in the hot tub. The valves sometimes have a gasket inside which can rot after being submersed for long periods. Replace any valves or gaskets that are defective.

Check all of the PVC piping for leaks. Look for moisture dripping from the pipes, or for small pools of water below the piping. Disconnect any section of pipe that you find leaking. Replace the pipe section, or patch it with PVC sealant or epoxy.

Look along the inside walls of the hot tub for cracks. There may be water pooling on the ground directly below a crack on the inside of the hot tube. If you think you have narrowed down the area where the leak is, check it with some dye. Squirt a small amount of colored dye, such as food coloring, next to the area you think is leaking. If the dye is sucked into the wall, then you have found the leak. Apply a coat of sealant to the leak. There are sealants made specifically for hot tube use, so make sure you use one.