Residential R.O. System Manufacturers

The residential R.O. system is a household water treatment device based on "reverse osmosis" technology, which is specially used for household drinking water purification. The R.O. system is widely used in urban families, rural self-built houses and use environments with high water quality requirements for its strong filtration capacity and stable effluent quality. Its core technology is to selectively permeate water molecules using a semi-permeable membrane (R.O. membrane) to separate impurities and contaminants in the water.

The working principle of the R.O. system is based on the reverse osmosis effect, that is, under the driving of water pressure, water molecules pass through R.O. membranes with extremely small pore sizes (usually 0.0001 microns), while most soluble solids, heavy metal ions, bacteria, viruses, organic compounds and other impurities are intercepted and discharged with wastewater. The system usually includes multiple filter units: the first stage is a PP cotton filter element, used to remove large-grain impurities such as silt and sand and rust; the second stage is granular activated carbon, which adsorbs residual chlorine and odor in water; the third stage is compressed activated carbon, which further adsorbs organic matter and odor; the fourth stage is R.O. reverse osmosis membrane; the fifth stage may be a post-installed activated carbon or mineralized filter element, which is used to improve the taste or supplement trace elements.

Residential R.O. systems are often equipped with booster pumps to solve the impact of insufficient urban water pressure on reverse osmosis membrane work. At the same time, the system will generate some wastewater, which is usually discharged in a certain proportion. Despite the existence of wastewater, the R.O. system has relatively stable performance in ensuring water quality and is especially suitable for direct inlet purposes such as drinking, making tea, cooking, and making milk. With the advancement of technology, some R.O. systems are also equipped with intelligent TDS detection, water quality alarm, filter element replacement reminder and self-cleaning functions, further improving the convenience and safety of use.

There are obvious differences between residential R.O. systems and ordinary water purifiers in terms of technical principles, filtration accuracy, scope of application and operating methods. Ordinary water purifiers mostly use physical methods such as ultrafiltration, activated carbon or ceramic filters to perform primary filtration of water. The filter pore size is generally between 0.01 and 0.1 microns, and are mainly used to remove large particulate pollutants such as silt, rust, some bacteria and odor. This type of equipment does not require electricity and has a fast water discharge speed, but has limited ability to deal with soluble impurities (such as heavy metals, pesticide residues, bacterial viruses, etc.).

The residential R.O. system uses reverse osmosis technology and has a filter pore size of 0.0001 microns, which can effectively remove almost all soluble solid impurities, including heavy metals, bacteria, viruses, pesticide residues, etc. The purified water is close to the pure water standard and is suitable for direct drinking. Due to the large resistance of R.O. membrane, the system is usually equipped with an electric booster pump and pressure control device, which requires electric power to drive and generate a certain proportion of wastewater.

R.O. systems usually have higher effluent purity, but slow filtration and relatively high maintenance costs. Although ordinary water purifiers have limited filtration capacity, they are more suitable for pretreatment or non-drinking purposes such as kitchens and washing vegetables because of their simple structure, no wastewater, convenient use, and low price.

The R.O. system is suitable for occasions with high water quality requirements, such as making milk powder, making tea, drinking water directly, etc. Ordinary water purifiers are mostly used to improve the taste of water, remove suspended objects and odors. Overall, the residential R.O. system has stronger purification capabilities and more complex technology, which is suitable for users with high-standard drinking water needs; while ordinary water purifiers are suitable for household users with basic needs for water quality improvement.

The efficient operation of residential R.O. systems is inseparable from daily maintenance and regular cleaning, especially its multi-level filter element structure needs to be replaced on time to ensure the quality of the water and the life of the equipment. Maintenance content mainly includes filter element replacement, pipeline flushing, water quality monitoring and system disinfection.

Replace the filter element. The R.O. system generally includes 5-level filtration, and the replacement cycle of each level of filter element is different. PP cotton is recommended to replace it once every 3-6 months, granular activated carbon and compressed activated carbon for 6-12 months, reverse osmosis membrane for 1-2 years, and post-installed activated carbon for about 6 months. If the frequency of use is high or the water quality of the raw water is poor, the filter element replacement cycle can be appropriately shortened. Clogged filter element will cause slowing out water, decreasing water quality, and even damaging the machine, so it must be replaced on time.

Flush the pipe regularly. Most RO systems have automatic flushing function, which can automatically clean the membrane surface after starting or intermittent use to extend the life of R.O. membrane. For equipment that does not have automatic flushing function, users can flush manually or regularly maintained by after-sales service personnel.

Cleaning of water storage bucket and outlet pipe. If it is not used for a long time or the use environment is humid, the water storage bucket should be emptied and disinfected to prevent bacteria from growing. After cleaning the water storage bucket with food-grade disinfectant, rinse it thoroughly before returning to normal use. If scale or odor appears in the water outlet pipe, it must also be replaced or cleaned in time.

It is recommended to use a TDS pen or intelligent detection module regularly to monitor the water quality of the water. Once the TDS value increases significantly, it may indicate that the R.O. membrane efficiency has decreased and replacement should be considered. If the system has abnormal conditions such as water leakage, noise or abnormal pump operation, you should contact after-sales service for inspection in a timely manner.

In discontinuous use scenarios (such as long-term business trips or relocation), it is recommended to cut off water and power, and clear the system to store water. When resuming use, the system must be thoroughly flushed to avoid contamination caused by old water. Through scientific maintenance and standardized use, it can not only extend the service life of the residential RO system, but also ensure stable and safe water quality. Most manufacturers provide regular home-to-door maintenance services, and users can formulate reasonable maintenance plans based on the frequency of use.