If your kitchen waste pipe is in an exterior wall, open the cabinet doors underneath the sink on freezing nights to let warm house air circulate. When to Call a Pro If you have tried heat for two hours with zero success; if you have cast iron pipes; or if you cannot find the location of the freeze, call a plumber. They have steam machines and electric thawing equipment designed specifically for this. It will cost you a few hundred dollars, but that is significantly cheaper than replacing a burst pipe and remediating sewage damage.
A frozen waste pipe is a race against the clock. Act fast, use gentle heat, and never let desperation drive you to a flame thrower. Stay warm, and good luck un-gunking those pipes frozen waste pipe
You flush the toilet. The water rises. You wait. And wait. Instead of the satisfying swoosh of departure, you are met with a slow, ominous backflow. If your kitchen waste pipe is in an