If you've ever walked into your kitchen or bathroom and noticed tiny flying insects hovering around the sink or shower drain, you're not alone. These little insects are called drain flies, and while they're harmless, they're definitely annoying. The good news is they can be eliminated once you know what's causing them. What are Drain Flies? Drain flies (also known as sewer gnats or moth flies) are small, fuzzy-looking insects about the size of a sesame seed. They love moistu