How to return the drain to working condition?

I believe that such a task is not a matter to face on your own. Because it can hurt. It would be much better if you turn to those who really understand such matters. For example, the company https://pomplumbing.ca/snaking-and-power-wash-of-kitchen-stacks-and-clogged-drains/ will be able to clean your drain even in the most inaccessible places. Moreover, you will receive a guarantee for their work, which means that there will definitely be no doubts about the quality of the services they provide.