10 Everyday Items You Must Never Pour Down the Drain

Flours

When flour meets water it becomes a gummy paste that coats interior pipe surfaces. That tacky layer traps crumbs, oils, and soap scum, thickening into a stubborn barrier.

Even small rinsed bits add up, narrowing passageways until flow slows or stops. Dry wipe excess flour into the trash before washing bowls to avoid future clogs.

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