Do not use chemicals like Drano or liquid cleaners to unfreeze a pipe. These chemicals are generally ineffective against ice and can become trapped in the pipe, creating a hazardous situation if you later need to take the pipes apart. Additionally, avoid using any tools like hammers to "knock" the ice loose, as frozen pipes are brittle and prone to shattering. Prevention for the Future
He found the pipe about twenty feet in. It was a four-inch cast-iron beast, running perpendicular to his path. In the yellow light of his headlamp, he could see the frost clinging to the exterior. Inside, he knew, was a solid plug of ice. A dam holding back the refuse of his life. how to unfreeze a drain pipe
It was a low, wet sound. The vibration traveled through the cast iron and into his hand. He leaned in, pressing his ear against the cold metal. Do not use chemicals like Drano or liquid