Although many believe it’s a common insect that appears randomly, the drain fly, also called a sewer fly or shower fly, is usually a sign of a plumbing problem. Its small size and slow flight make it inconspicuous at first, but when it starts appearing frequently in the bathroom or near the sink, it can become a constant nuisance.
This curious insect tends to settle in damp, poorly ventilated areas rich in organic matter. That’s why the bathroom is one of its favorite spots. While it doesn’t usually pose a serious health risk, its presence can indicate cleaning or maintenance







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