Hard water · 6 min
Hard water in Ontario: why softeners are so common
Southern Ontario groundwater and many municipal supplies are hard. Here's what scale does to homes and how softeners fix it.
Why Ontario water feels hard
Much of southern Ontario sits on limestone and dolomite geology. Groundwater picks up calcium and magnesium; many municipal plants deliver moderately to very hard water even after treatment.
Signs you need a softener
- White crust on taps and shower glass
- Soap that won't lather
- Spots on dishes and glassware
- Shortened life on water heaters and dishwashers
- Scratchy laundry
Softener basics
Ion-exchange softeners swap hardness minerals for sodium (or potassium). Sized correctly for your grains-per-gallon and household peak flow, they protect plumbing and appliances throughout the house.
Next step
If you're in the GTA, Ottawa, Hamilton, London or nearby, request a free softener quote and we'll match a local installer.