The answer to 'water softener burst pipe' is that a burst pipe from a water softener is usually caused by freezing temperatures, excessive water pressure, or a malfunctioning valve. Symptoms include water leaking from the softener, low water pressure, and wet floors around the unit. To fix a burst pipe, you'll need to shut off the water supply, drain the softener, and replace the damaged pipe.
In many cases, a burst water softener pipe can be repaired by a homeowner, but it's important to take safety precautions and have the right tools. However, if the damage is extensive or you're unsure of the cause, it's best to call a professional plumber to inspect the system and make the necessary repairs.