10 Things You Should Never Pour Down the Drain
Flours

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Flour is a kitchen staple, but pouring it down the drain can cause significant plumbing problems. When flour meets water, it forms a thick, glue-like paste that can adhere to pipes.
This sticky paste can trap other debris and food, creating a large clog over time. When combined with grease and waste, it can form a dense blockage that is hard to remove. This buildup can slow water flow, causing sluggish drains or full blockages that need professional help.
Even small amounts of flour washed down the drain can accumulate, increasing the risk of clogs. It is wiser to dispose of flour properly to avoid plumbing issues.