To drano or not to drano. The combination will fizz a bit and should be left for about 30 minutes before running hot water to flush the pipes. Worth It Or Not Homemade Drano Cleaning Hacks Unclog Helpful Hints Make sure there has not been any backflow before bathing, and that it is stopped at the drain. Drano not working tub . Pour boiling water into drain. If drano is not working pouring 1/2 cup of baking soda down the drain , followed five minutes later by 1 cup of vinegar, is often an effective solution to clogs caused by grease or soapy buildup. If drano doesn’t work in your shower drain, bathtub drain, or kitchen sink, you can try using a plunger. If you have a clog, this can be a difficult process. Look in your kitchen pantry. Feel free to wear a plastic glove.) 2. Bring the snake close to the drain and push the snake cable into the clogged drain by rotating the handle clockwise or pulling the trigger. Plumber is coming tomorrow to look, but i talked to my p...