Due to the many disadvantage of RO systems we have discontiniud the sale of the systems

20 Disadvantages of Reverse Osmosis (RO) units

Don’t risk your health and waste money! If you’re looking for cleaner, healthier water for your family, you may have considered a reverse osmosis faucet as one option for pure drinking water. Before you go that route, you need to know the truth about reverse osmosis filtration, and why this is not the best choice for drinking water.
  1. Reverse Osmosis (RO) units waste a lot of water. They recover only 5 to 15 percent of the water entering the system. The remainder is discharged as waste water into the drain.Reverse Osmosis System

  2. Removes essential minerals in the water. Drinking RO or Distilled water also removes essential minerals from your body. Drinking demineralised is not recommended by the WHO (World Health Organisation).

  3. Water is flat and has little or no taste or life to it.

  4. Systems usually are large and bulky.

  5. RO units are high maintenance systems. To maintain the performance & life of RO membranes it is necessary to regularly flush the RO Membrane and clean it with chemicals at suitable intervals.

  6. Flow rates are usually limited to a few liters per day. The slow production requires a large holding reservoir that takes up space.

  7. A serious problem for the reverse osmosis process is membrane fouling. Clogging may occur when high levels of harmless minerals, such as calcium and magnesium are present. Regular membrane replacement is needed.

  8. Point of Use RO units is slow and make only a few liters of treated water a day for drinking or cooking.

  9. Many conditions affect the RO membrane's efficiency in reducing the amount of contaminant in the water. These include the contaminant concentration, chemical properties of the contaminants, the membrane type and condition, operating conditions (like pH, water temperature, and water pressure).

  10. RO systems require a minimum water pressure. A relatively high water pressure is needed to force the water molecules through the membrane. In an emergency situation where water pressure has been lost, these systems will not function. Low water pressure may also result in premature fouling of the membrane or the need to install a expensive electrical booster pump.

  11. RO systems require regular expensive maintenance. The pre and post filters and the reverse osmosis membranes must be changed according to the manufacturer's recommendation, and the storage tank must be cleaned periodically.

  12. Damaged membranes are not easily detected, so it is hard to tell if the system is functioning normally and safely.

  13. The storage unit for treated water will support bacteria growth unless regularly disinfected.

  14. Independent tests have found that reverse osmosis units are prone to bacterial re growth, primarily due to the removal of residual chlorine. R/O tanks also contain rubber, a surface favorable for bacterial growth.

  15. Most need a drain to flush away impurities.

  16. It requires the pre and post filters to be efficient.

  17.  Expensive systems to install. Requires technician to install.

  18. Expensive systems to maintain.

  19. Chlorine in the water will affect life of the RO Membrane.

  20. Damaged Membrane not easy to detect. Electronic monitoring should be used.