Why is my RO system producing less water?

Reverse osmosis equipment is a technical device used to remove dissolved solids, heavy metals, bacteria, viruses, and other impurities from water. Its working principle is to use the selective permeability of a semipermeable membrane to force water molecules out of the solution by applying high pressure, thereby achieving the process of removing impurities.

Usually, reverse osmosis equipment consists of an inlet water pretreatment system, a high-pressure pump, a reverse osmosis membrane module, a control system, and an effluent treatment system. The inlet water pretreatment system is used to remove suspended solids, organic matter, and bacteria to prevent these impurities from affecting the service life of the reverse osmosis membrane; the high-pressure pump is used to provide sufficient pressure to overcome the osmotic pressure of the solution and push water molecules through the membrane; The reverse osmosis membrane component is a key part, responsible for the actual separation process; the control system is used to monitor and regulate the operation of the entire system; and finally the effluent treatment system is used to handle the subsequent processing of the reverse osmosis water.

Reverse osmosis equipment is widely used in drinking water treatment, industrial water recycling, seawater desalination, and other fields. Because of its mature technology and remarkable effects, it has become one of the most commonly used water treatment equipment.

As time goes by, we will find that the water output of the reverse osmosis device will become smaller and smaller. Why does this happen? Let's take a look.

There are many possible reasons why the output of the reverse osmosis water treatment equipment is getting smaller and smaller, including but not limited to the following:

1. Under the same inlet pressure as the water production side, due to the pressure holding on the water production side or the water production pipeline being too small, the delivery point is far away, and the resistance is large, resulting in a decrease in net pressure and low water production.
2. The reverse osmosis equipment is not maintained in time, and the reverse osmosis equipment lacks corresponding daily maintenance operations. Generally, the quartz sand, activated carbon, and softener front-end filters are not well maintained, and the safety filter element is not replaced in time or even not replaced.
3. Under normal pressure difference conditions, for the membrane elements of the reverse osmosis equipment, the two-stage pressure difference is not suitable. Unreasonable pipeline design leads to large pressure loss or incomplete closure of the second-stage concentrated water discharge valve, which will lead to a decrease in the net pressure of the reverse osmosis water treatment equipment, resulting in low water production.
4. Instrument reading error The pressure gauge and flow meter of the reverse osmosis equipment are not calibrated before use, and the reading is inaccurate. The pressure gauge is installed far from both ends of the pressure vessel, and its reading contains the pressure loss of the pipeline, but it is used as the water inlet pressure, which leads to low water inlet pressure and low water output.
5. Filter blockage is the most common reason. Because the water purifier has been used for a long time, a lot of impurities will accumulate on the filter element, resulting in a smaller water flow. At this time, the filter element needs to be replaced in time.
6. Insufficient pressure in the pressure barrel will also affect the water output. If there is insufficient air in the pressure barrel, it will affect the work of the booster pump and cause the water output to become smaller. At this time, it is necessary to check and replenish the air in the pressure barrel.
7. Water pressure problems are also factors that cannot be ignored. If the water pressure at home is insufficient, it will also cause the water output of the water purifier to become smaller. At this time, a booster pump can be installed to increase the water pressure.
8. The machine itself may also cause the water output to become smaller, such as broken pipes, loose joints, etc., which require professional inspection and maintenance.

Please note that the above are only some possible reasons, and specific problems need to be checked and solved according to the actual situation. If you cannot solve it yourself, it is recommended to contact professional technicians for inspection and maintenance in time.

In the second part, we have learned that the water output of reverse osmosis water treatment equipment will gradually decrease with the passage of time and continuous use. So, how should we maintain the reverse osmosis system during use to extend its service life?

We can achieve this by:

• Check for System Leaks: Inspect all connections for leaks and promptly repair or replace any faulty components to prevent water pressure loss.
• Increase Tank Pressure: Ensure optimal tank pressure (7-8 psi) by using a suitable pump according to manufacturer instructions.
• Clean or Replace the RO Membrane: Monitor the RO membrane for clogs or fouling, and consider cleaning or replacing it if necessary.
• Clean or Replace the Clogged Faucet Aerator: Regularly clean or replace the faucet aerator to prevent mineral deposits and sediments from restricting water flow.
• Inspect and Clean Water Lines: Check water lines for kinks or obstructions and flush them to maintain a smooth water flow.
• Optimize RO System Placement: Install the RO system in a cool, ventilated area away from heat sources to maintain efficiency.
• Evaluate Water Temperature: Maintain water temperature within the recommended range to prevent damage to the RO membrane.
• Flush the System Regularly: Periodically flush the system to remove accumulated sediments and contaminants for optimal performance.
• Check the Water Pressure Regulator: Inspect the water pressure regulator for defects that may affect water pressure in the RO system.
• Assess Water Source Quality: Conduct regular water tests to address high contaminant levels that can impact the RO system's efficiency.
• Consider Upgrading Components: Upgrade outdated components to improve water flow and system performance.
• Schedule Professional Servicing: Arrange regular professional maintenance to ensure longevity and optimal operation of the RO system.