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    How To Locate And Repair A Hot Tub Leak

    There’s nothing worse than knowing you have a leaky hot tub, but not knowing where it’s coming from. That’s why Wizard are here to help you locate your leak and give you magical tips on how to repair it.

    Before we dive into it, a handy thing to know is the warranty you have on your tub or know what warranty options there are before purchasing your tub, so you’re fully covered if you’re ever to run into a leak.

    Detecting the leak

    A common way to detect where our leak is coming from, is to dye the water in the tub. You can use ordinary dye or food colouring. The coloured water will be easy to spot when looking around your spa, indicating where the leak is coming from.

    Another option is to let the leak ride out (without the spa running) and wait for the water level to drop and maintain it’s level. This is a longer process, however once the water level stops dropping, you’ll be able to investigate further as to where the leak possibly is.

    Fixing the leak

    There are many reasons a hot tub can leak. If you’ve gotten this far and still not able to identify the issue, it could lie within the following:

    The Pump: One of the most common locations where a hot tub leak can arise is the circulation pump. If you’re going to check this location, be sure to turn off the power and check under the pump for leaking water.


    There are typically three causes of leaking pumps: the shaft seal, unions, or the volute:

    • Seal Shaft: If the shaft seal has failed, you can order a new seal without replacing the entire pump
    • Union Fitting: A union fitting is a three-part connector located at the entrance and exit. It could simply need to be tightened (don’t use a wrench to do this!), the O-ring might need to be adjusted, or you may need a new one.
    • Volute: If the volute is your issue, where the impeller is housed, you most likely need to replace it.

    With all that said, it’s also possible your pump needs to be altogether replaced.

    The Heater: If the pump showed no signs of leakage, then the heater could be a potential issue. Within the heater are the heater itself, the pressure switch, and other components – any of which could be the culprit. It’s possible an individual component can be replaced, but more than likely you will need to replace the entire heater or have someone repair it.

    Valves: There are multiple valve styles on hot tubs, each having its own unique way of being repaired. Some spas have valves installed on one side of the pump so water doesn’t have to be shut off or drained when the pump needs repair. Other valves have compartments bolted together with a gasket between the compartments—this is known to fail and cause a leak. Be sure to inspect all valves located on your hot tub and replace any as necessary.

    Connections: Be sure to check all pipes, jets, and any other connections. Some connections are easy and only need to be tightened or sealed while others may need a full replacement. If you have a failing gasket, be sure you order the right parts as there are different gaskets for different style spas. Have a crack in a PVC pipe? There’s a gem called Plast-Aid that seals up cracks or holes, which becomes stronger than the PVC pipe itself!

    Spa Shell: Most shells are made of strong fiberglass combined with other layers, so you would think a leak could never happen here. In many cases, it’s not the shell that causes problems, but a jet or other component attached to the shell. If the spa shell does have a leak, Plast-Aid can be used to seal holes or cracks.

    If you need further help or one of our engineers to come out and give it a look at, Contact us and we’ll be more than happy to help.

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