Postprecipitation in Distribution Systems

A description of the causes of postprecipitation is followed by a discussion of the effects of the phenomenon on distribution pipelines. In severe cases, the carrying capacity of mains can be reduced by half or water quality at the tap can be adversely affected, causing customer complaints. Since postprecipitation occurs often, operators should be aware of problems that exist and take preventive action through altering treatment practices. Distribution systems should be sampled periodically to determine if problems are present.