There are many types of RO Filters, that do a wide range of different filtration (Fluoride, Chlorine, Pesticides, Detergents and more). Some filters are designed to control the pH or adding certain minerals back into the water. Multiple filters do make up the steps in the system but the membrane is the brains of the bunch. Solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side. To be "selective", this membrane should not allow large molecules or ions through the pores (holes), but should allow smaller components of the solution (such as solvent molecules) to pass freely.
Common Filters in a System
Going through the Steps:
Things To Do To Maintain Your System
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