The chemical reaction between commercial cleaners and vinegar/bicarb can create dangerous fumes or even cause the pipe to heat up dangerously fast. If you have already poured chemicals down, wait at least 24 hours and flush heavily with cold water before trying the natural method. If the sink is still gurgling after the first try, don't give up. Sometimes a tough grease clog needs a "paste" treatment.
Pour one cup of white vinegar down the drain immediately after. You will hear a furious fizzing sound—that’s the magic happening! bicarbonate of soda to unblock sink
Your pipes—and your wallet—will thank you. not a flooded one.
If your sink is full of water, you need to bail it out first. The reaction works best on a damp drain, not a flooded one. bicarbonate of soda to unblock sink