Where RO usually fits
Most residential RO systems are installed under a kitchen sink and feed a dedicated faucet. Some also connect to a refrigerator water line. They are designed around drinking and cooking water rather than every fixture in the house.
What to ask before installing
- Where will the RO faucet go?
- Can it connect to the refrigerator?
- How often do filters and membrane need replacement?
- Will the installer handle drilling, drain saddle, and leak checks?
- Is a storage tank included?
RO and softeners solve different problems
A softener is about hardness throughout the home. RO is about drinking-water treatment at a point of use. A homeowner can have one, both, or neither depending on goals.