This is because alkali ion water is rich in calcium minerals. This happens because when CO3 is available a lot, CO3 is combined with calcium, this extracts CaCO3. This implies that reducing process is being done. There is nothing wrong with drinking the contents, however you are advised to wash the container. You might want to purchase citric acids from a pharmacy and dissolve it in 1ℓ of water to clean the container. However you are advised to wash the container. You might want to purchase citric acids from a pharmacy and dissolve Getting deposits formed hardly happens in clean water, CaCO3 might be extraced more when water is rich in minerals or CO3 as more reducing ion seperating progress will take place. In such case, pH must be adjusted to the right level for that particular water |