: If you don't have rods, try a drain bladder or a high-pressure hose to blast through the obstruction. For grease-based clogs, a mixture of baking soda and vinegar followed by boiling water can help dissolve organic matter.
If the drain repeatedly blocks, it could indicate a , root intrusion , or a deeper issue in the main sewer line. In these cases, you may need a CCTV drain survey or a professional with high-pressure jetting equipment. unblock outside kitchen drain