We bought mineral rocks to put at the bottom of our trash can to add minerals back to the water that is removed by the filtering process. There are no more than 160+. What we like about them: 1. They add calcium, magnesium, iron, potassium, zinc and other beneficial minerals to the water. These minerals are essential for your body to function properly2. They help alkalize your water. The benefits of an alkaline body are amazing. Cancer cannot grow or survive in your body! 3. They last 2-3 years! Depending on how much water you drink, they can last up to 3 years. Simple instructions. So easy to read and follow. You simply wash the stones, let them air dry, and then place them in the bottom of the water filtration system. In my case berkley.5. It does not change the taste of your water. We didn't even notice the difference in taste, so we get all the added benefits without adding a different flavor to the water. 6. And finally, I like that the cost is so low. For the value these mineral stones add, the price is definitely low. Especially since this is a purchase that you only have to make every 2-3 years. Normally I would say what I don't like here, but to be honest I didn't find anything I didn't like. (And that's rare!) If you want to add minerals and alkalize your water, I definitely recommend them.
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