Lead in Drinking Water: Actions You Can Take To Reduce Lead In Drinking Water, Flush Your Pipes Before Drinking. Sources of Lead in Drinking Water.EPA 810-F-93-001 June 1993Flush Your Pipes Before Drinking Anytime the water in a particular faucet has not been used for six hours or longer, "flush" your cold-water pipes by running the water until it becomes as cold as … [Lee mas...] about Actions You Can Take To Reduce Lead In Drinking Water