Caustic Soda Unblocking Drains |link|

Dissolving NaOH in water releases significant heat (approx. 44 kJ/mol). This heat softens waxes, melts soap scum, and accelerates the chemical reactions.

Caustic soda is a powerful but dangerous tool. For most households, a manual drain snake (costs $15–30) is safer, more reliable, and reusable. If using NaOH, treat it as a last-resort chemical weapon , not a routine cleaner. caustic soda unblocking drains

Unblocking Drains with Caustic Soda: A Complete Guide Caustic soda—formally known as ( NaOHcap N a cap O cap H Dissolving NaOH in water releases significant heat (approx

| Method | Best For | Speed | Safety | Pipe Risk | Cost | |--------|----------|-------|--------|-----------|------| | Plunger | Soft clogs (toilet, sink) | Instant | Very safe | None | $0 | | Drain snake / auger | Solid obstructions (tampons, toys, roots) | 5-20 min | Low (manual) | Low | Moderate | | Caustic soda (NaOH) | Grease, hair, soap | 30-60 min | | Moderate (heat/corrosion) | Low | | Sulfuric acid drain cleaner | Paper, organic matter | 15 min | Extreme risk | High (eats pipes) | Moderate | | Enzymatic cleaner | Maintenance of slow drains | Hours-days | Very safe | None | Moderate | Caustic soda is a powerful but dangerous tool