Chloramines are a result of a combination of chlorine and certain wastes. They can cause eye and skin irritation, and strong chlorine odor. A shock treatment should be a part of your regularly scheduled pool care program, recommended as a weekly application, and more frequently after heavy use or rain. Shocking oxidizes or destroys undesirable contaminants in pool water, leaving the water clear and sparkling. Choose any of the products listed below for your routine shocking.