Free Calgary Test
How Bad Is Your Calgary Hard Water?
Calgary has some of Canada's hardest tap water. 6 quick questions about your bathroom will tell you exactly where you stand and what to do about it.
Calgary Hard Water Severity Test
6 questions to assess your home's hard water buildup
What does your shower glass currently look like?
Why Calgary Homes Have Hard Water Problems
Calgary's tap water originates from the Bow and Elbow Rivers, which flow through the Rocky Mountains' extensive limestone geology. Limestone dissolves calcium and magnesium carbonates into the water as it flows downstream. By the time it reaches Calgary taps, the water carries approximately 180–220 mg/L of dissolved calcium carbonate — making it hard to very hard by Canadian standards.
When this water evaporates from surfaces — shower glass, faucets, tile, kettle elements — the dissolved calcium stays behind as a white, chalky deposit. Over weeks and months, these deposits build into thick layers that become increasingly difficult to remove.
Vancouver
2–3 mg/L
Very Soft
Toronto
120–140 mg/L
Moderately Hard
Calgary
180–220 mg/L
Hard to Very Hard