Keeping your Melissani M1 running smoothly is all about one thing: timely filter replacement. Your water purifier is only as effective as the filters inside, and knowing when and how to replace them ensures you're getting the cleanest, best-tasting water every day.
This guide covers:
- Which filters your M1 uses
- When to replace each filter
- How to replace them (step-by-step)
- Signs your filters need changing
- How to automate the process with the Filter Club
Which Filters Does the Melissani M1 Use?
Your M1 purifier features a 3-filter reverse osmosis system, designed to remove contaminants at every stage:
| Filter Type | Function | Replacement Frequency |
|---|---|---|
| CF Filter (Composite Filter) | Captures large particles, sediment, and chlorine | Every 6 months |
| PAC Filter (Pre-Activated Carbon) | Removes VOCs, odors, and organic matter | Every 6 months |
| RO Membrane Filter | Filters down to 0.0001 microns, removing heavy metals, fluoride, bacteria, and viruses | Every 12 months |
How to Know It’s Time to Replace a Filter
While your M1 includes a Smart Filter Life Indicator, you might notice these signs too:
- Water tastes different or metallic
- Flow rate slows significantly
- Filter indicator light starts blinking
- Visible buildup or residue in the tank
If you notice any of the above—even before the indicator light—it’s time to replace your filters.
Filter Light Guide
🟢 Green Light
- Filter is in good condition
- More than 30% of filter life remaining
🟠 Orange Light
- Filter is approaching end of life
- 10–30% of filter life remaining
- Time to plan for a replacement
🔴 Red Light
- Filter is at or near the end of its lifespan
- Less than 10% of filter life remaining
- Immediate replacement recommended to maintain water quality and system performance
How to Replace Your Filters (Step-by-Step)
- Unplug the machine for safety.
- Remove the water tank and carefully open the filter compartment.
- Twist and unlock the old filters—dispose of them properly.
Make sure to line up the arrow on the filter with the raised gray dot on the unit. This alignment is key.
Once they’re aligned, the filters should lift out easily. - Insert new filters, pressing down gently and twisting until they click into place securely. (Think of it being locked in at the 9PM position)
- Run 2–3 cleaning cycles to flush the new filters and ensure everything’s running smoothly.
- Reset the Filter Life Indicator by pressing and holding the Filter Reset button (see your manual for exact steps).
Done! Your machine is now re-optimized for performance.
Never Run Out: Join the Melissani Filter Club
Want to skip the hassle of remembering when to reorder?
The Melissani Filter Club delivers filters to your door on a personalized schedule and includes:
- 10% off every filter
- Free shipping
- Extended 1-year warranty
- Flexible delivery you can adjust anytime
Join today and we’ll take care of the rest.
Final Thoughts
Replacing your filters on time is the easiest way to:
- Keep your water fresh and healthy
- Extend the life of your machine
- Ensure you're always drinking the purest water possible
Mark your calendar or subscribe to the Filter Club—and your M1 will take care of you.
Need help finding the right filter? Visit our filter replacement page or reach out to our support team—we’re here to help!