| Method | Effectiveness (Organic) | Safety Risk | Pipe Damage | Cost | Eco-Friendly | |--------|------------------------|-------------|-------------|------|---------------| | Caustic soda | High | Very high | Moderate (heat/corrosion) | Low | No | | Sulfuric acid | High (but dangerous) | Extreme (fumes, burns) | High (eats metal) | Low | No | | Plunger | Medium (for soft clogs) | Very low | None | Free–Low | Yes | | Drain snake/auger | High (for solid clogs) | Low (mechanical) | Low (scratching) | Medium | Yes | | Baking soda + vinegar | Low (mild fizzing) | Very low | None | Low | Yes | | Biological enzymes | Medium (slow, overnight) | Very low | None | Medium | Yes |
Carefully pour the mixture down the drain. unblock drain with caustic soda