Municipalities do a fine job of delivering water to your home that is essentially safe. However, in order to accomplish this it requires the use of chemicals such as ammonia, chlorine, and various settling agents, all of which can have an impact on your health when long term exposure is experienced. These are referred to as disinfectant by-products. Some, for example chloramines and trihalomethanes (THMs), are suspected of being carcinogenic or cancer causing agents, therefore it is in your best interest to remove them from your water. Some people may say that they don’t drink the water coming into their home and that is wise, however, when it comes to the above mentioned chemicals, even breathing in the air that is affected by these chemicals can have a detrimental effect.