Every year, homes and businesses produce millions of tons of waste. A large percentage of this waste ends up in landfills, where it can take centuries to break down. However, some waste products, such as hazardous liquids, can seep into the ground and contaminate local water supplies. One way to prevent this contamination is to waterproof waste pits. Waterproofing a waste pit involves applying a coating to the interior and exterior of the pit that will prevent liquids from seeping through. There are many different types of waterproofing coatings available, so it is important to choose one that is compatible with the material of the pit.