How To Thaw Frozen Drain Pipes Underground. Open the faucet to relieve pressure as you work and turn off the main water supply in case a pipe has burst. About 50 pounds of water will be coming through the pipe when it is fully thawed.
About 50 pounds of water will be coming through the pipe when it is fully thawed. I would say it likely needs to be replaced. Here’s how to thaw frozen pipes….that are exposed.
You can read several success stories on our customers page from people who unclogged frozen pipes using a sewer jetter.
Use a shutoff valve for thawed underground pipes. Turn on your water source and advance hose. Almost everyone has got a hair dryer available and there is almost no risk of fire. Most frozen icy waste removal jobs can be completed using the cold water supply from a garden hose.