Flushing is the process of running the water until all the water standing in the system has been replaced with fresh water. It usually takes a few minutes and uses one to two gallons. The contaminated water that you flush out of your pipes should not be used for consumption (i.e., drinking, bathing, or even washing dishes and clothes.) If you are trying to conserve water, use this water for non-edible plants. You must do this for each drinking water faucet, because taking a shower will not flush your kitchen tap. Flushing is important because the longer water is exposed to lead pipes or solder, the greater the possibility of lead contamination. The water that comes out after flushing will not have been in extended contact with lead pipes or solder and should contain less lead.