Lime Softening Quicklime that has been combined with water. Also called slaked lime or calcium hydroxide. Tags: Distribution System, Hydrated Lime, Lime Softening, Water Treatment Read more articles Previous PostDistribution System Next PostWater Quality You Might Also Like Membrane in Water and Wastewater Treatment October 8, 2013 How to Calculate Cubic Yards Removed – Distribution Systems October 4, 2017 How to Study for Water Treatment License Exams – Part 7 of 10 October 15, 2018 Post author: Post published:January 28, 2017 Post category:Certification Exams / Distribution / Water Treatment