Basic Components of Reverse Osmosis Systems

Reverse osmosis is a water filtration process that makes it possible to desalinate water. During reverse osmosis, dissolved inorganic solids such as salts can be removed from water by pushing it through a semi-permeable membrane, which does not allow impurities or contaminates to pass through. Every reverse osmosis system is made up of the same basic components, and this includes:

  • Water storage tank – this is where the unfiltered water is held and having a large one is one way to ensure that the pump lasts long.

  • Cold water line valve – this fits into the cold water supply line and is where the water for the system passes through.

  • Reverse osmosis membrane – this is the heart and soul of the system. It purifies the water and when it comes to material, there is typically a choice between CTA (cellulose tri-acetate) and TFC/TFM (thin film composite/material).

  • Multi-layer filter – can be filled with material that can target specific things that the system cannot catch, including the remaining tastes and odors.

  • Storage tank – this is where the pure or filtered water goes to and is stored for use. A standard tank can hold up to 2.5 gallons of water.

  • Check vale and automatic shut off valve – the former shows the backward flow from the storage tank, and the latter stops any more water from entering when the storage is full.

The components above work together throughout the whole reverse osmosis process and produces the clean, purified water that is to be used.


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