🌊*Hard water ahead? Let's soften the concept!* Hardness of water isn't just about scale in your kettle—it's a classic exam favorite. _From types (temporary vs permanent) to removal methods, this pearl breaks it down so you won't forget it in the viva or the ward._ Revise the Pearl Hardness of Water on MARROW! - https://link.marrow.com/pearl/5a0283d14f25447d0916f938