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1. Chlorination Question

Hi Mr. Savant,

Regarding the comment that chlorination is no longer the perferred method of disinfection, one needs to understand their system to see if chlorination, chloramination, UV, or chlorine dioxide will work.  Determine what is in the raw water, if you have issues with parasites such as cryptosporidium and giardia, you should shoot for 4 log treatment and use UV, Chlorine dioxide, since these organisms are resistant to chlorine.  Also, disinfection byproducts are caused when chlorine reacts with naturally occurring organic matter to form these DBPS called total trihalomethanes and haloacetic acids.  In addition, water age from water in storage tanks not being turned over can cause DBP issues along with warm temperatures and distribution system pipes with lots of biofilm.  Perform some jar tests to see what would be the effective dose that would be required to maintain the residual you want.



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