While industrial and commercial reverse osmosis water treatment systems are powerful and work well, their filter elements don't last forever. These elements require some routine maintenance on your part each year to keep them functioning properly. Otherwise, the water filtered by the reverse osmosis water treatment equipment will not meet your requirements.
When functioning properly, the reverse osmosis filtration process has at least three, but sometimes perhaps four distinct stages: quartz sand filter, activated carbon filter, precision security filter, and then the reverse osmosis membrane filter. In order to obtain a continuous supply of high quality pure water, each of the different filter elements requires periodic replacement. How long these filters last usually depends on your usage factors and the quality of your source water. Under normal circumstances, reverse osmosis membranes can be used for 1 to 5 years. Other filters, however, require replacement more quickly. Typically the pre-filter elements of a reverse osmosis water treatment system can last anywhere from six months to a year. A good experience is that you regularly check the equipment operation status.