Disinfecting the Water System Only the surfaces that are contacted by the chlorine solution will be disinfected. The following recommendations will help to accomplish a thorough job. To avoid adding more contaminants to the well during the disinfection procedure, clean up the work area around the top of the well. Be sure to wash pumping equipment and piping with the chlorine solution as it is lowered into the well. Cloth sack filled with powdered chlorine compound is ready to be lowered into the well.
Weighted sack filled with chlorine powder is lowered into the well.
Strong chlorine solution is recirculated back to the well. Newly constructed wells, or those that have been submerged by flood waters, may contain substantial amounts of sediment that cloud the water and interfere with disinfection. Pump the well until the water clears before proceeding with shock chlorination. Liquid sources of chlorine can be poured directly into the well. Mix the required amount of dry compound with a small amount of water and stir thoroughly to dissolve.