| ✅ Do | ❌ Don’t | |------|---------| | Use cold water only | Use hot water (causes violent boiling) | | Wear full PPE | Mix with vinegar, bleach, or ammonia (toxic chlorine gas) | | Keep children/pets away | Pour down a toilet (can crack porcelain) | | Rinse skin immediately for 15 mins if splashed | Store leftover mixture – neutralize with vinegar and dispose |
Before using caustic soda, make sure you: how to use caustic soda for unblocking drains