While it won’t dissolve a solid metal hairpin or a lost earring, bicarbonate of soda is remarkably effective against the most common cause of sink blockages: . This includes grease, soap scum, food particles, and hair.
Pour a full kettle of boiling water directly down the drain. This softens any greasy or waxy buildup, making it easier for the next step to work. sink unblocker bicarbonate soda
Quickly cover the drain opening with a plug or a damp cloth. This traps the carbon dioxide gas inside the pipe, forcing it to push against the blockage rather than escaping upwards. Leave it for 15–30 minutes . While it won’t dissolve a solid metal hairpin