Ro UF Membrane

The Roles of RO vs. UFRO Membrane (The TDS Controller):Pore Size: ~$0.0001$ micron.Function: Its primary job is to remove dissolved solids (TDS), heavy metals (lead, arsenic), and chemicals. It requires high pressure from a pump to work.Result: It makes hard water "soft" and drinkable, but it can sometimes strip away too many minerals.UF Membrane (The Biological Guard):Pore Size: ~$0.01$ micron.Function: It acts as a physical barrier against bacteria, cysts, and viruses. It does not require electricity or high pressure.Result: In an RO+UF system, the UF is often used as a final "polishing" stage to ensure that even if the RO membrane has a minor bypass, no microorganisms reach the glass.2. Why Use Both Together?Using an RO + UF configuration is considered a "Double Protection" setup. Here is why it is effective:Secondary Safety: If the RO membrane develops a tiny tear or the O-rings leak, the UF membrane (placed after the RO) acts as a backup to catch any escaping bacteria.Mineral Modulation: In some systems, a "TDS Modulator" or "MTDS" bypasses a small amount of water around the RO membrane to keep minerals in. Placing a UF filter after this bypass ensures that the un-RO'd water is still biologically purified.Clarity: The UF membrane ensures the water is crystal clear by removing any remaining suspended particles or "colloids."3. Technical Comparison for Service & SalesFeatureRO MembraneUF MembranePrimary GoalReduces TDS / HardnessRemoves Bacteria / VirusesTypical Capacity75 GPD / 80 GPD0.5 to 1.0 Liters/MinuteWaste WaterRejects 60-70% as wasteZero waste (usually)Pressure RequirementHigh (Booster Pump)Low (Gravity or Tap)PlacementMiddle of the systemUsually the Final stage