A water treatment plant in Limoges, France, uses traditional physico-chemical processes, which means that in order to produce clean water for drinking, reagents such as ferric chloride, an inorganic iron-based coagulant, must be injected. 

Reagents metered by diaphragm metering pumps caused excessive maintenance, siphoning and inaccurate dosing. Bredel APEX pumps solved this issue and eliminated the need for nonreturn valves.

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