It's usually best to avoid chemical cleaners if you can, but you can still get quite creative with techniques to unclog your drains. One great way to unclog your sink drains is by plunging it. Of course, you don't want to take your used toilet plunger straight to your sink, but the mechanism for clearing a drain is the same as a toilet-the curved pipe is prone to clogs, so using a suction force is a surprisingly effective way to unclog your drain. Another unique way is by using a shop vac. Shop vacs handle liquid very well, and you can use the narrow head to pull materials out of a narrow pipe. One trick that can make this more effective is if you can use something to block the air around the drain, creating a suction. You could even try creating a seal with your hands by cupping the drain around the shop vac hose. You can then use this to push or pull debris out of the drain. If others methods aren't working, the shop vac is a great home remedy in a pinch that could save you from calling us.