Use a chlorine metering pump to kill odors and bacteria in your well water. Chlorination for home water is wells is a low cost and very effective method to eliminate odors, kill bacteria and pre-treat water prior to certain types of iron filters. The chlorine is injected each time the well pump turns on. A small amount of chlorine is injected as the water flows into the contact tank, giving some time for the chlorine to work properly. When used with an activated carbon filter, it removes the residual chlorine before it enters the home. The result is clean, clear, odor-free, chlorine-free water throughout the home.