For years, getting decent-tasting water meant loading buckets into the car and driving about 20 minutes each way to refill alkaline water jugs. Installing an under‑sink RO system finally solved that and saves hours of driving every year.
Why this M800 system
The Frizzlife M800 is a non‑electric, tankless reverse osmosis system that produces mineralized, bottle‑grade water right under the sink. It uses a built‑in rechargeable battery only for the display, so the filtration itself works with normal water pressure and does not require a power outlet.
Key reasons it stood out:
- No power outlet needed: Filtration is driven by water pressure, and the display runs off a USB‑charged internal battery.
- Tankless, space‑saving design: No bulky storage tank to cram under the sink, and less risk of stagnant water or secondary contamination.
- Mineralized, alkaline water: The system adds back beneficial minerals like calcium, magnesium, and zinc for smoother‑tasting water that is more than just “stripped” RO.
- Smart display and filter‑core design: The screen shows TDS and filter‑life status, and only the inner filter cores are replaced instead of the entire plastic housing.
If you are used to basic refrigerator filters, the taste difference from an alkaline, remineralized RO system is immediately noticeable in tea, coffee, and everyday drinking water.
Install overview
This is an under‑sink DIY that a confident homeowner can tackle with basic tools and some patience. Always follow local plumbing codes and the official Frizzlife manual for your exact configuration.
High‑level steps from the install:
- Plan faucet and unit location
- Choose a spot for the dedicated RO faucet on the sink deck where you have clearance underneath and won’t hit cabinets or risk cracking granite.
- Dry‑fit the M800 under the sink to confirm hose routing, drain access, and space for filter changes.
- Drill the faucet and accessory holes
- Use the correct size diamond or carbide hole saw for your countertop material (½ in for the RO faucet shown, larger for the soap dispenser).
- Work slowly with water as lubrication if drilling stone and support the underside so you do not chip the surface.
- Tap into the cold‑water line
- Shut off the main or local shut‑off valve and verify that water is off at the faucet before loosening any fittings.
- Install the supplied T‑fitting on the cold line, reusing existing O‑rings where present and adding plumber’s tape only on metal‑to‑metal threaded connections.
- Connect RO inlet, outlet, and drain
- Use the color‑coded push‑to‑connect fittings and factory‑cut tubing where possible, then lock them with the provided clips.
- Install the drain saddle on a vertical section of the sink drain, drill the specified ¼ in hole, and align the saddle port exactly with the hole before tightening.
- Mount or place the unit and faucet
- Secure the faucet from underneath with its bracket and nut, then connect the RO outlet tubing.
- The M800 can be wall‑mounted using the provided template or simply set on a silicone tray under the sink to catch any future drips.
- Turn on water, leak‑check, and flush
- Slowly restore water pressure with someone ready at the shutoff in case of leaks.
- Check every connection and tighten as needed, then let the RO faucet run for at least 20 minutes for the initial flush recommended by the manufacturer.
After installation, the system auto‑flushes itself every 24 hours once that feature is activated, which helps keep the membrane fresh.
Living with the M800
After several weeks of use, the M800 provides on‑demand alkaline water for drinking, cooking, coffee, and tea, and it has quickly replaced the refrigerator filter as the family’s go‑to water source. The kids adapted to it immediately, and the built‑in battery indicator still showed a full charge after about three weeks of normal use.
Notable everyday perks:
- Set‑and‑forget flushing: The unit runs an automatic flush cycle roughly every 24 hours once configured, so maintenance is minimal beyond periodic filter changes.
- Clear status at a glance: The display shows TDS and filter‑life information, so you are not guessing when it is time to service the filters.
- Less plastic waste: Only the inner cores are replaced, which cuts down on plastic compared with full‑housing filter swaps.
Where to buy & coupon code
If you want alkaline, mineralized RO water at home without adding another powered appliance under your sink, the Frizzlife M800 is a strong option. You can check current pricing and specs here:
- Frizzlife M800 Tankless RO System – Buy it here
At checkout, use Code: Randomm800 for 15% OFF your M800 system (valid at the time of writing).
