Boiling Water Down Drain Today

Standard PVC pipes are generally rated to handle temperatures up to 140°F (60°C) . Boiling water is 212°F (100°C) .

However, exceptions do exist. If a homeowner is certain their pipes are metal—such as copper or cast iron—the risk of pipe damage is negligible. In these cases, a kettle of boiling water can indeed help clear a slow drain, provided it is done in moderation and without grease present. The key is awareness of one’s own infrastructure; blind assumption is where the risk lies. boiling water down drain