New: waterfilterAll contentburnbotkrblurtzzanactifitgamesburnpostr2cornellinstablurtphotographycurationbeblurtblurtgermanfrankbaconblurtafricablurtlatamblurthispanoblurtindiajapanblurtblockHotTrendingNewDAppseffiworkx in water • 4 years agoWhat is hard water and how to measure water hardness levelWhen water passes through or over limestone or chalk deposits, chalk and magnesium ions dissolve into the water and it is their presence that makes the water ‘hard’. One of the most visual ways of…
