By John Gannon
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October 2, 2025
It’s easy to think of your kitchen sink as a catch-all for cooking messes. After all, you rinse pans, wash dishes, and clean up spills there every day. But one of the most common (and damaging) mistakes homeowners make is pouring grease, oil, and fat down the drain. At Reliable Plumbing & Sewer Service Inc., we’ve seen firsthand how these everyday kitchen byproducts create serious problems for kitchen drains, garbage disposals, and even sewer lines. Here’s why grease is the #1 enemy of your plumbing system—and how you can protect your home. Why Grease, Oil & Fat Cause Drain Problems When grease, cooking oil, or animal fat is hot, it’s liquid. But as soon as it cools, it hardens and sticks to the inside of your pipes. Over time, this sticky buildup traps food particles, soap scum, and debris. Eventually, the inside of your pipes becomes narrower and narrower until you end up with a clogged kitchen drain. Left untreated, grease buildup can lead to: Slow-draining sinks Foul odors coming from the drain Frequent need for drain cleaning services Backups that affect multiple fixtures Sewer line blockages that require costly repairs The Bigger Picture: Sewer Line Issues Grease buildup doesn’t just stay in your kitchen drain. It can travel into your main sewer line , where it mixes with other debris and forms what plumbers call a “fatberg.” These dense clogs are extremely tough to remove and often require professional sewer line cleaning or repair. In severe cases, grease-related clogs can cause sewage to back up into your home—creating a hazardous mess and costly cleanup. Common Myths About Pouring Grease Down the Drain “If I run hot water, it will wash the grease away.” False. Hot water only pushes the grease further down the line, where it cools and hardens. “Dish soap breaks down grease, so it’s safe.” Dish soap may break grease into smaller pieces temporarily, but eventually, it still sticks to your pipes. “My garbage disposal will take care of it.” Not true. Disposals grind food, but they don’t dissolve grease. In fact, grease can damage the disposal over time. How to Properly Dispose of Grease, Oil & Fat Pour it into a container. Use an empty can, jar, or disposable container to collect grease after cooking. Let it solidify. Once it hardens, throw the container into the trash. Wipe pans with paper towels. Before washing, wipe away as much grease as possible. Recycle cooking oil. Many communities offer oil recycling programs—check with your local waste department. Professional Help for Grease-Related Clogs If you already have slow drains or a stubborn clog, it’s time to call a professional. At Reliable Plumbing & Sewer Service Inc. , our expert team uses safe and effective methods to remove grease buildup and restore your plumbing. Services include: Kitchen drain cleaning Sewer camera inspections to locate grease blockages Sewer line repair or replacement if grease has caused permanent damage Protect Your Home with Reliable Plumbing Your kitchen drain is one of the hardest-working parts of your plumbing system. Don’t let grease, oil, and fat ruin it. With regular maintenance and smart disposal habits, you can avoid costly repairs and enjoy a healthier, odor-free plumbing system. 📞 Call Reliable Plumbing & Sewer Service Inc. today for professional drain cleaning and plumbing services in Tinley Park , Orland Park , Mokena , Oak Lawn and the surrounding Chicagoland area. We’re here to keep your drains clear, your pipes safe, and your kitchen running smoothly.