Before you begin, If only one fixture is backed up (e.g., the kitchen sink) but the bathroom works fine, it is likely a freeze. If no water works anywhere, you may have a frozen main water supply line.
If you have heat tape (electrical tape that warms up when plugged in), wrap it around the frozen section and turn it on. This provides slow, even heat. If you don’t have it on hand, the hair dryer is faster. how to thaw a frozen drain pipe
Do not use this method on supply lines (pipes bringing water in ). Only use on drain pipes (pipes taking water out ). Salt can damage certain metals and kill plants in your septic drain field if used excessively. Before you begin, If only one fixture is backed up (e
A frozen drain pipe can be a major winter headache, leading to slow drains, backups, or even burst pipes that cause expensive water damage. Unlike supply lines, drain pipes usually contain less standing water, but traps and horizontal sections are highly susceptible to ice blockages. This provides slow, even heat
If you cannot locate the frozen section, if the pipe is inaccessible, or if you notice any cracks or bulging, call a licensed plumber immediately. Attempting to thaw a burst pipe can result in immediate flooding.
: Turning on the faucets relieves pressure and allows steam or melting water to escape safely.
Tips for Thawing Frozen Pipes - Lakeway Municipal Utility District