You don’t need to obsess. Start with a common baseline: every 4 days. Then test your water after a week.
Fill a glass. Does it feel slippery? That’s good—soft water is slightly slick. Does it feel like rubbing two dry bars of soap together? Too hard.
Adjust by one day. Every 5 days feels better? Keep it. Every 3 days makes your hair feel like silk? Stick with that. Your softener is your robot, not your boss.
One Last Weird Fact
Some softeners have a “stress test” mode. They regenerate every night for a week after installation. It’s like boot camp for the resin. It’s hilarious and unnecessary.
Ignore that. Stick to your schedule. And if you ever see your softener doing a regeneration at 3 AM, just whisper, “Good job, buddy.” It’s earning its keep.
So, how often should it regenerate? The answer is: whenever it needs to. Listen to the water, watch the salt, and stop guessing. Your shower will love you for it.