: Bleach is corrosive. It can weaken metal pipes, eat through the glue in PVC joints, and damage rubber seals in garbage disposals .
Bleach (sodium hypochlorite) is an oxidizer and a powerful disinfectant. It can break down like: unclog sink with bleach
| Pipe Material | Effect of Bleach | |---------------|------------------| | PVC (white plastic) | Generally safe for occasional use, but repeated exposure makes plastic brittle over years | | ABS (black plastic) | Similar to PVC – moderate risk | | Copper | Accelerates corrosion on inside walls | | Galvanized steel | High risk – bleach eats through zinc coating, leading to rust and leaks | | Cast iron | Moderate risk – may damage protective lining | : Bleach is corrosive