Fat + NaOH → Glycerol + Soap (water-soluble) Hair (protein) + NaOH → Water-soluble amino acid salts
If the drain is still slow, the process may be repeated once. If the blockage persists after two attempts, it is likely a solid object or tree root intrusion, requiring professional mechanical intervention. how to unblock drains with caustic soda
These substances can cause permanent damage to the skin and eyes upon contact. Inhaling the fumes can also irritate the respiratory system. Fat + NaOH → Glycerol + Soap (water-soluble)
| Suitable for | Unsuitable for | |--------------|----------------| | Kitchen sink (grease, oil, food scraps) | Toilets (can crack porcelain) | | Bathroom sink (hair, soap scum) | Aluminum or galvanized pipes (caustic corrodes them rapidly) | | Shower drains (hair, body oils) | Old cast iron pipes (can worsen rust if used repeatedly) | | Plastic PVC pipes (safe if used correctly) | Complete blockages (liquid cannot reach the clog) | | | Standing water (caustic reacts violently, causing splashing) | Inhaling the fumes can also irritate the respiratory system