So, how often? The short answer: pre-filters and carbon every 6 months. Membrane every 2-3 years. Post-filter yearly. Read your manual because life is short.
Your system isn’t immortal. It’s a team of hardworking parts. Treat them like the heroes they are. Replace filters on time. Your water will be crisp, clean, and utterly delightful.
And when you take that first sip of perfectly filtered water? Imagine your filters doing a tiny happy dance. They earned it. Now go change them already.