The SENTRY I dry pellet chlorinator from Better Water Industries Inc. works like a “gum-ball machine or corn planter” and deposits the de-sired amount of chlorine down the well and into the water supply. The SENTRY I system is an oxidizer that treats iron, manganese and rotten egg smell and also helps control iron bacteria problems. This chlorinating system can be used for your home, farm or business. Better Water Industries Inc.