A :B :C :D :E :F :G :H :I :J :K :L :M :N :O :P :Q :R :S :T :U :V :W :X :Y :Z :


Lime Soda Ash Softening

A water treatment which makes use of lime softening followed by the reduction of noncarbonate hardness by addition of soda ash (Na2CO3) to form an insoluble precipitate which is removed by filtration.

This method of removing hardness by filtration is sometimes used by municipalities, but it will leave five or more grains per gallon of residual hardness.