When acidic water flows through copper or metal plumbing, it creates a chemical reaction that breaks material down from the inside. You may see blue or green staining in sinks, tubs, or toilets. You may also notice recurring small leaks that seem to come out of nowhere. Those issues are rarely random. An acid neutralizer corrects the problem at the source by conditioning the water before it reaches the rest of your system. That protection adds years to the life of your plumbing and reduces the chance of emergency repairs.