Our kitchen sink usually can take a lot of garbage, but after a while, it got clogged. We tried using all these liquid sink things, hoping for it to work and unclog our sink, but they failed. So, after asking a family friend, we called in these guys. A couple guys came in our house, and got this long tube they called a 'snake.' They put it done in the sink. I returned in about an hour, and saw they were already done. I tested the sink and saw water went in again! Yay!