Cedar Basket Home Water Notes
Water Treatment Reference

Filtration, softening, and hard water treatment for Canadian homes

Reference notes on how point-of-entry filtration, ion-exchange softening, and hardness management work at the household scale, with attention to the mineral-rich groundwater common across the Prairies and parts of Ontario.

Under-sink residential water filter system with cartridges and tubing
Under-sink filter assembly. Image: Wikimedia Commons.

Water chemistry differs from one Canadian region to the next

Municipal supplies in coastal cities such as Vancouver tend to be soft, while groundwater wells across Saskatchewan, Manitoba, and southern Alberta are frequently hard. The right approach depends on what is actually in the water, which is why testing comes before equipment.

Test before you treat

Hardness, iron, pH, and total dissolved solids each point to different treatment paths. A laboratory report removes guesswork and prevents oversized systems.

Match the system to the problem

Sediment, chlorine taste, and scale-forming minerals are separate issues. Carbon, ion exchange, and reverse osmosis address different fractions of water chemistry.

Plan for maintenance

Cartridges, salt, and membranes need periodic attention. A system is only as effective as its upkeep schedule allows it to be.

Three reference notes

Reverse osmosis system with pressure vessels and membranes
Reverse osmosis assembly. Image: Wikimedia Commons.

From whole-house to the kitchen tap

Treatment is often layered. A point-of-entry stage protects plumbing and appliances, a softener manages hardness, and a point-of-use reverse osmosis unit at the kitchen sink polishes water intended for drinking and cooking.

Test Sediment Carbon Soften Polish

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Start with the basics of hard water

The hardness note explains the units and thresholds that the rest of the site refers to.

Open the hard water note