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What hard water is doing to your house

Water heaters scaling

Minerals settle and bake onto the bottom of a tank, or coat the heat exchanger in a tankless unit. Efficiency drops, then the unit fails early - see water heaters.

Fixtures and cartridges

Scale builds inside valve bodies and aerators. Faucets stiffen, showerheads clog, and cartridges wear out sooner than they should.

Spotting and film

White spots on glassware and a film on shower doors are the visible version of what is happening inside your pipes.

Soap and detergent use

Hard water reduces lather, so households use more of both without noticing.

The options, honestly

Whole-house softener

Ion exchange, the traditional approach. Genuinely effective on scale. Needs salt and periodic service, and there are local considerations around brine discharge worth discussing before you buy.

Salt-free conditioners

These do not remove hardness minerals; they alter how they crystallise so they are less likely to stick. Lower maintenance, no salt, and a milder effect than a true softener. Anyone claiming they equal a softener is overselling.

Whole-house filtration

Targets chlorine, taste and sediment rather than hardness. Often paired with a softener rather than replacing it.

Reverse osmosis at the sink

The right tool for drinking water quality specifically. Small footprint under the sink, excellent results, and it does nothing for the rest of the house.

Related services

Fighting scale and spotting?

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