What Is Reverse Osmosis?
Reverse osmosis (RO) is a filtration process that uses a semi-permeable membrane to reduce dissolved solids in water. Water passes through multiple filtration stages, which may help improve clarity, taste, and odor for drinking and cooking applications.
RO systems are typically installed as point-of-use systems, such as under a kitchen sink, rather than treating all water in the home.
Common Reasons Homeowners Consider Reverse Osmosis
Homeowners may consider reverse osmosis when they notice concerns related to drinking water quality, such as:
- Unpleasant taste or odor in tap water
- Cloudiness affecting drinking or cooking water
- Dissolved minerals or contaminants identified through testing
Because many drinking water concerns are not visible, testing helps clarify whether RO is appropriate.
Why Reverse Osmosis Needs Testing First
Water quality can vary significantly between homes, even within the same area. A professional water test helps identify what may be present and whether reverse osmosis is appropriate, ensuring the system is properly selected, sized correctly, and focused only on addressing identified concerns.
Solutions That May Help
Depending on water test results, reverse osmosis solutions that may help include:
- Under-sink RO systems for drinking and cooking water
- Systems designed for municipal or private well water
- Tankless RO options for on-demand filtration
RO systems are often used alongside whole-home treatment or water softeners to support overall performance.