Use only a damp cloth. Harsh chemicals can crack the plastic casing.
The unit arrives with a sediment filter pre-installed. But the RO membrane is separate. Open the membrane housing (the large vertical tube). The manual says “insert membrane.” Better: (not Vaseline, which degrades rubber). Push the membrane firmly until the double o-rings are seated. Screw the cap on hand-tight plus 1/8 turn.
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Disconnect the flexible faucet connector hose from the cold water shut-off valve.
Must be connected to a mains cold water supply .
Drill holes at the marked positions and insert the heavy-duty wall plugs. Use only a damp cloth
Locate the unit within 3 feet of a 230V electrical outlet and a cold water supply line.
Check that all line valves are turned parallel to the tubing; verify your home's main water pressure is above 30 PSI.
Use a screwdriver to remove the two primary screws securing the front plastic cover to reveal the heavy-duty, corrosion-resistant steel backplate. But the RO membrane is separate
Typically 6mm² or 10mm² depending on the run length and unit kilowatt rating.
Screw the 3-way diverter valve onto the cold water line. Tighten securely with the wrench, ensuring you do not over-tighten, which can crack the fittings.