Clogged drains are one of the most common plumbing calls we receive. While some clogs are unavoidable, most can be prevented with awareness of what causes them and simple maintenance habits.
Kitchen drains clog primarily from grease, fats, and oils that solidify in pipes. Even if grease goes down as a liquid, it cools and solidifies in your pipes, gradually building up until the drain is blocked. Food particles, coffee grounds, and starchy foods like rice and pasta (which swell with water) also contribute to kitchen clogs.
Bathroom drains clog from hair, soap scum, and personal care product residue. Hair is the primary culprit. It catches on pipe walls and creates a net that traps soap and other debris. Shower and bathtub drains are especially vulnerable.
Sewer line clogs are often caused by tree root intrusion. Tree roots are attracted to the moisture in sewer pipes and can infiltrate through small cracks or joints. Once inside, roots grow and expand, eventually blocking the pipe completely. Other sewer line clog causes include flushing non-flushable items, pipe deterioration, and insufficient pipe slope.
Prevention tips: Never pour grease or oil down drains. Let it cool and throw it in the trash. Use drain screens in showers and tubs to catch hair. Run hot water after each use to flush debris. Don't flush anything except toilet paper. Consider annual professional drain maintenance if you have recurring issues.