To unclog a bathtub drain, start by removing visible debris near the drain and pouring a pot of boiling water down it. Use a plunger to create suction and dislodge the clog, and follow with a mixture of baking soda and vinegar to break down debris. For persistent clogs, consider using a chemical drain cleaner cautiously or employ a plumbing snake to physically remove the obstruction. Always follow safety guidelines, and if these DIY methods prove ineffective or if you’re uncomfortable with the process, call Radiant and we’ll stop by to clear the clog fast.