Stretching a balloon over the shower drain to block insects may look clever in a viral video, but pest prevention experts warn that the drain is rarely the only — or even the main — way insects enter a bathroom. Moisture, hidden gaps around plumbing, and damaged seals along doors and windows all play a role that a balloon simply cannot address.
A viral hack that only covers one of many entry points
The balloon trick spread through social media as a quick, low-effort fix: place a balloon over the shower drain when the bathroom is not in use, and insects supposedly stay out. The appeal is obvious — no chemicals, no tools, no cost.
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