Test the well water. Before treating or consuming the water, it must be officially tested if you smell an odor, to determine if the water is contaminated. Testing will inform you if anything further is going on with the water besides the sulfur.
Test the chlorine in the well water. Use a kit that tests for free chlorine, not total chlorine.
Install the Chlorine injection system. The company from which you purchased the system will install this for you. With each type of chlorinator, the chlorine should be introduced into the water as close to the source as possible. This allows the clorine to have a longer water contact time. The continuous chlorination oxidizes manganese and iron so they can be filtered out and oxidizes hydrogen sulfide to reduce negative odors.