You can use your drinking water for everything -- from washing vegetables to filling your family's glasses at dinner. For most homes, municipalities treat drinking water with chemicals including chlorine and chloramines to rid it of contaminants present in the water. While chlorine and chloramines are successful in treating bacteria in the water, but they can miss certain contaminants that are harmful to the overall health. So,  protect your family with harmful contaminants by using water purification systems.