The answer to 'why is my water softener burst pipe' is a burst pipe on a water softener is often caused by freezing temperatures, high water pressure, or a mechanical failure in the softener. Symptoms can include water leaking, low water pressure, or the softener not working properly. Solutions may include insulating the pipes, adjusting the water pressure, or replacing worn components in the softener.
If the burst pipe is caused by freezing, it's important to thaw the pipes safely and address any underlying issues like lack of insulation. High water pressure can be fixed by installing a pressure-reducing valve. For mechanical failures, you may need to replace parts like the brine tank, resin bed, or valves. In some cases, the entire water softener may need to be replaced if it's old or malfunctioning.