At first glance, it sounds like a clever internet hack—stretch a balloon over your shower drain and supposedly keep pests out. It seems simple, inexpensive, and easy enough that many homeowners are tempted to try it after seeing it online. But like many viral household tips, this quick fix promises far more than it can realistically deliver. Bathrooms attract insects for reasons that go much deeper than a single drain opening, and covering one spot rarely solves the underlying problem.

Bathrooms naturally provide the warmth, moisture, and shelter that many pests seek. While drains can sometimes serve as entry points, insects may also enter through gaps around plumbing, cracks in walls, poorly sealed doors or windows, and other hidden openings. A balloon placed over a drain isn’t designed to create a secure, sanitary seal and can slip off, deteriorate, or simply become inconvenient to remove whenever the shower is used. Even if it temporarily blocks one possible route, it does nothing to stop pests that have other ways into the home.

The most effective solution is prevention rather than shortcuts. Repairing leaks, improving ventilation, reducing excess humidity, cleaning drains regularly, and sealing gaps around pipes and fixtures all help make bathrooms less inviting to insects. If pest problems continue despite these measures, a professional inspection can identify hidden entry points throughout the home. Viral hacks may seem appealing, but lasting results come from addressing the source of the problem—not just covering one small part of it.