Aim the heat at the frozen section, moving it back and forth as if drying hair. Avoid high-heat settings that could melt plastic (PVC) pipes.
If the ice is deeper in the drain line or you cannot access the pipe directly, try these chemical and thermal flushes: How to Thaw Frozen pipes without any tools how to unclog a frozen drain pipe
| Method | How To | |--------|--------| | | Wave back and forth over the frozen section for 10–15 min. | | Heat gun (low) | Keep moving; stay 6+ inches away. | | Space heater | Aim at exposed pipe from 2–3 feet away. | | Hot towels | Soak towels in hot water, wring out, wrap around pipe. Replace as they cool. | | Salt water | Mix ½ cup salt into a liter of warm water; pour slowly down the drain (safe for metal pipes only – salt corrodes some metals). | Aim the heat at the frozen section, moving