<prompt> Level of Hardness if the value is 50-150 mgL -Soft waterModerately hard waterHard waterVery hard water  <response>: Ans. is b i.e., Moderately hard water Classification of hardness in water Classification Level of hardness mEq.litre a Soft water b Moderately hard c Hard water d Very hard water Less than 1 50 mgL 1 - 3 50 - 150 mgL 3 -6150 - 300 mgL Over 6 300 mgL 