Guides · 6 min
Whole-home filtration vs under-sink RO: which do you need?
Most Canadian homes benefit from both — a point-of-entry system for every tap, plus reverse osmosis for drinking water. Here's how to decide.
Start with your water source
Municipal homes usually need chlorine/chloramine reduction and hardness control. Well homes often need iron, sulphur, bacteria (UV), and softening.
Whole-home (point of entry)
Treats every tap: showers, laundry, dishwashers. Softeners and carbon/sediment trains live here.
Under-sink RO
Best for drinking and cooking water. Certified RO reduces PFAS, lead, nitrates and dissolved solids.
Typical Canadian stack
- Softener (if hard water)
- Whole-home carbon
- Kitchen RO
- UV on private wells
Request a free local quote on WaterFilterHelp.ca to size the right system.