Every day, high-efficiency boilers and water heaters quietly do their jobs, keeping our homes and buildings warm and providing hot water. Left unchecked, this invisible byproduct can corrode pipes, damage plumbing systems, and even harm the environment. A simple yet powerful process called condensate neutralization. Acid condensate might not sound like a supervillain, but in the world of high-efficiency condensing boilers, furnaces, and water heaters, it’s a very real threat. The International Plumbing Code (IPC) and Uniform Plumbing Code (UPC) both emphasize the importance of treating corrosive waste before disposal.