Sink Unblocker Bicarbonate Soda 〈Tested & Working〉

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 .

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

Pour ½ cup of dry bicarbonate of soda directly into the drain. Try to get it past the drain strainer and into the pipe. Quickly cover the drain opening with a plug or a damp cloth

Immediately pour 1 cup of white vinegar down the drain. You will hear a vigorous fizzing sound—this is good. sink unblocker bicarbonate soda