To unstop a kitchen sink, use a plunger to clear minor clogs, or a plumbing snake for more stubborn blockages. For grease or food buildup, use a mixture of baking soda and vinegar followed by hot water. If the clog persists, a professional plumber may be needed.

Unstop a sink using a plunger or plumbing snake for stubborn clogs. Use baking soda and vinegar for buildup. Seek professional help if the clog persists.