One of the most common questions we get, is how does one go perform chlorination service on water lines? The concept of chlorination is always the same, but the execution depends on a few variables. The main concept is to continuously inject chlorine at a desired concentration into the water line as water is flowing through the pipe, so that chlorinated water is evenly distributed to all areas within the pipe. The only time we deviate from this concept is for the chlorination of large water storage tanks. In that case, we add a calculated volume of concentrated chlorine to an empty tank, and then slowly fill up the tank with water so chlorine is mixed evenly and sanitizes the tank as its filling. In either event, once the chlorination is complete, the chlorine will be allowed to sit for a period of time, either 3 hours or 24 hours, depending on the concentration used. This holding time allows the chlorine to kill any bacteria and pathogens thus making the system sanitary and ready for normal use.