I've been struggling with a clogged kitchen sink for a week now. The water drains slowly, a greasy film constantly forms, and the smell is just awful. I've tried baking soda, vinegar, and a bunch of household chemicals — nothing helps for long. Apparently, the clog is somewhere deeper. Maybe I need a plumbing snake or professional flushing? If you've been through this before, please advise me on the best course of action and who to call so I don't waste money on “miracle cures.”Maybe the problem is in the bend of the pipe or the wrong slope — is that why everything is stagnating? I think you need to check if there is old grease inside that chemicals simply cannot remove. If anyone has had a similar problem, please write whether mechanical cleaning with a cable helps, or whether it is better to call a plumber with a hydroflush right away.