Hard water is a huge threat to your plumbing system, as you’ve probably gleaned from other posts on this blog. We’ve gone into pretty great detail about the damage hard water can do to your system, but we haven’t extensively covered where hard water comes from. Let’s take a look at what creates hard water, and by extension lime scale.


As part of the water cycle, the water that is eventually piped into your home percolates through the soil and into the ground water. In geographic areas with lots of limestone, gypsum, calcite and dolomite, the water absorbs large amounts of magnesium and calcium. When the water is pumped out of the ground, it takes those minerals with it.


The water then goes to the municipal water treatment plant, where it is run through extensive treatment in order to remove any dangerous bacteria or other elements. Magnesium and calcium are not dangerous to your health, and you are exposed to them in plenty of other settings. This is part of the reason that hard water slips through the treatment process. The problem is that hard water does harm your plumbing system.

Lime Scale

Once hard water makes it into your plumbing, it will start to deposit magnesium and calcium particles on the walls of the pipes. Over a long enough period of time, these particles build up into lime scale. Lime scale restricts the flow of water through your pipes down to a trickle, and at that point you’ll need to scrape out the system to restore it to full function. The best way to prevent this whole thing from happening is to install a water softener in your home.

If you’d like to know more about water softeners, call The Trusted Plumber. We offer a full range of water softener services throughout Goodyear, AZ.

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