Unions

Most union leaks are usually right after a water change because of the temperature difference.  The warm water going out versus the cold water going in having an effect on the gasket.  Use the water change as a chance to check the gaskets.

In other circumstances where the spa has been frozen or exposed to very cold water it may cause the unions to crack or break.  Ensuring you winterize properly if you will not have your spa in use during cold winters will help prevent this from occurring.

Select next to troubleshooting steps.