Household RO membranes are typically used in RO water purifiers or RO water treatment systems, usually installed under the kitchen sink. The water pipes are connected to the purifier, and filtered water is dispensed through a dedicated faucet.
The working principle of household RO membranes is similar to that of industrial RO systems, mainly involving the following steps:
1.Water Inlet: Raw water passes through a pre-filter to remove large particles before entering the RO membrane.
2.RO Membrane Filtration: The RO membrane removes dissolved solids, heavy metals, bacteria, and other impurities, allowing purified water to enter the storage tank.
3.Wastewater Discharge: Water that does not pass through the RO membrane (containing impurities) is discharged, typically at a ratio of 3:1 (wastewater to purified water).
Key Usage Considerations:
- Pre-filters and Activated Carbon Filters: These must be installed to protect the RO membrane and improve filtration efficiency. They typically need replacement every 6 to 12 months, depending on local water quality.
- RO Membrane Replacement: Unlike pre-filters, the RO membrane generally needs replacement every 2 to 3 years. Signs that indicate replacement is necessary include slower water flow and declining water quality.
- Regular Cleaning: To extend the lifespan of the RO membrane, regular cleaning is recommended to prevent clogging and maintain water flow. Always refer to the purifier's manual for specific cleaning instructions, usually involving special cleaning solutions.
- Drainage System Maintenance: If the RO system has a wastewater discharge function, regularly check for blockages to ensure smooth drainage.
- Proper Installation & Hygiene: Keep the installation area clean to prevent bacterial contamination. Avoid exposing the RO membrane to chemicals or pollutants.
Following these guidelines will help ensure the efficiency and longevity of your household RO membrane system.
