Aquarius Water Conditioning Blog

Does Hard Water Cause Kidney Stones?

Kidney stones typically form when our urine contains more crystal-forming substances than fluid. For this reason, some have concerned themselves about hard water and if it could potentially cause kidney stones to form (because of its high level of calcium and other minerals). Here’s what you should know:

Hard Water and Kidney Stones

When urine contains too much calcium or other crystal-forming minerals, our bodies are unable to dilute them; therefore, kidney stones can form. Though hard water does have a higher calcium level than soft water, there is not enough evidence to prove hard water causes kidney stones. In fact, most hard water does not contain high enough levels of minerals to be a danger to our health. 

Furthermore, some research has contended that if hard water contains extremely high levels of calcium and magnesium, it could play a bigger role in kidney stone formation compared to soft, filtered water. 

Preventing Kidney Stones

Although no one is certain on the negative effect of hard water on our kidneys, one thing is for sure: the amount of water we drink definitely has an impact on the buildup of kidney stones. If you’re prone to kidney stones, you should always be sure to take in enough water to allow for minerals to be diluted. 


If your home does have hard water, adding a water softening system can not only make water taste better, but can help in a multitude of other household chores.

From removing soap scum to having softer hair, skin and clothes, contact Aquarius Water Conditioning today for all of your water filtration needs!

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