The Complete Do-Not-Flush List (From a Plumber Who’s Seen It All)

After clearing thousands of sewer line blockages across the Upstate, our plumbing team has a very short list of what belongs in a toilet — and a very long list of what doesn’t.

What Belongs in Your Toilet

1. Human waste
2. Toilet paper

That’s the complete list.

The Do-Not-Flush List

“Flushable” wipes: The number one offender. They don’t break down regardless of what the packaging claims. We pull these from drain lines daily.

Paper towels and tissues: Designed to absorb and hold moisture, not dissolve. They clog pipes.

Feminine hygiene products: Tampons expand in water. Pads are made of absorbent material that swells and creates blockages.

Cotton balls and swabs: Cotton doesn’t decompose in water. Swab sticks catch on pipe joints and create snag points.

Dental floss: Wraps around pipe obstructions and creates a net that catches everything else. It’s also not biodegradable.

Hair: Accumulates over time and combines with grease and other debris to form stubborn clogs.

Medications: Doesn’t cause clogs but contaminates water supply. Most pharmacies accept unused medications for proper disposal.

Condoms: Latex doesn’t decompose and can inflate with trapped air, creating drain obstructions.

Cat litter: Absorbs water and expands. “Flushable” cat litter is better than standard clay litter but still not recommended.

Cooking grease: Solidifies in pipes whether it enters via the kitchen drain or the toilet.

Diapers: Obviously too large for the drain, but we’ve responded to this more than once.

Cigarette butts: Filters are made of plastic-based fibers that don’t decompose.

Band-aids: Plastic and adhesive that sticks to pipe walls.

Food scraps: Don’t decompose quickly enough and attract grease buildup.

Why It Matters

Everything you flush travels through your home’s drain line to the main sewer line. If you’re on municipal sewer, blockages between your home and the street are your responsibility — and clearing a main sewer line runs $200-$600+. If you’re on septic, non-decomposable items accumulate in the tank and can clog the outlet baffle, leading to far more expensive problems.

The simplest prevention: keep a trash can next to every toilet in the house.

YOUTUBE EMBED: One Drain – Waldrop Plumbing Air Electric TV Commercial — @YallCallWally

Call Waldrop Plumbing Air Electric at (864) 536-0887 if you’re dealing with a toilet or sewer line clog.

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