A grease trap goes into the drain line of a commercial sink, and is designed to catch fat and oil as it pours down the drain. Grease can cause huge problems with your plumbing if you’re not careful. It’s liquid at high temperatures, but will solidify as it cools in the pipes, creating a clog and causing a serious backlog. Ideally, you should never pour hot fat or grease down the drain, but that may not be possible in a restaurant setting or similar business. The grease trap takes the worry out of it, allowing your Chicago, IL business to continue uninterrupted.