How To Thaw Frozen Drain Pipes _verified_ | Fully Tested

pour boiling water or chemicals down a completely blocked frozen drain—it can crack the pipe or splash back dangerously.

The key rule: Sudden extreme heat can crack cast iron or melt PVC/ABS plastic pipes. Never use an open flame (propane torch) on a drain pipe—it’s a leading cause of house fires. how to thaw frozen drain pipes

If the drain pipe is blocked by ice, the faucet will likely be dry or trickling. As you thaw the blockage, the water trapped behind the ice needs somewhere to go. Opening the faucet relieves pressure in the pipe and signals success when the water finally starts flowing again. pour boiling water or chemicals down a completely