Set a calendar reminder. Seriously. I use my phone: “Change RO filters—you’re not a fish, stop acting like it.” Some systems have fancy electronic alerts. But if yours is basic, just mark the date. Your future self will thank you.
And here’s a secret: most filter kits come with color-coded labels. Stick them on the housing with the month and year. It’s like a birthday for your water. Celebrate with a toast.
