The answer to 'why is my water softener constantly running' is that your water softener may have a mechanical or electrical issue causing it to cycle continuously. This could be due to a faulty timer, a stuck valve, a leaky connection, or other internal problems. The constant running can waste a significant amount of water and salt, leading to higher utility bills.
Some common symptoms of a malfunctioning water softener include the softener running at all hours, the brine tank not refilling properly, or the softener not regenerating on schedule. To troubleshoot the issue, you'll need to inspect the various components of the softener system, test the electrical connections, and check for any leaks or blockages. If you're not comfortable doing this yourself, it's best to call a professional plumber who can properly diagnose and repair the problem.