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 Water Quality January 28, 2017 How to Study for Water Treatment License Exams – Part 6 of 10 October 8, 2018 California Water Treatment Operator Certification Overview June 12, 2017 Post author: Post published:January 28, 2017 Post category:Certification Exams / Distribution / Water Treatment