When you get lazy with your cleaning habits, often you will experience a clog in your sink. Before you notice the slow draining of water, or the unpleasant smell from the drain, there could be something else down there: the drain fly. 

You may not notice that the drain fly has taken up residence in your plumbing until you spot one on your wall. The drain fly isn’t much of a fly, really, as it looks more like a miniature moth measuring roughly one-eighth of an inch. In fact, other names for drain flies include moth fly, sewer fly, or filter fly.

Drain flies thrive on stagnant water, particularly shallow sources near food or bacteria. This makes both your bathroom and kitchen the favorable areas for the drain fly, and more so if that area is not frequently used, such as a basement bathroom or workshop sink.

Fortunately, drain flies are not harmful to humans. They do not bite, nor do they transmit human disease. Instead, the drain fly is a powerful sign that your kitchen or bathroom needs a deep clean. Doing so will not just remove the drain flies, but will help prevent them and other insects from reappearing.

First, you want to identify where the flies are coming from. You can do this by placing some tape over the top of your drains. If you see any flies get stuck to the tape as they try to exit, then you have found the source.

The most basic process to eliminating drain flies is to keep a steady cleaning regimen. Clean the sink with your normal solution and equipment, and use a pipe brush to scrub in and around the drain. The idea here isn’t to remove the drain flies themselves, but to remove any materials or debris that serves as the ideal breeding ground for the flies.

In a more severe circumstance, the drain flies may use the area around the shower as a breeding ground. When you have a shower that leaks, drain flies could use that space under the shower pan or behind the wall. 

We recommend that if you find one source of drain flies, don’t stop there. Most times, drain flies could breed at multiple sources, so you will need to put your attention on multiple locations.

The moth fly life cycle ranges from 8 to 24 days. In the right conditions, they will lay up to 100 eggs, and these eggs will hatch in less than 48 hours. This means that as soon as you notice one moth fly, take quick action to prevent even more.

Keeping your sinks, drains, and other water sources clean isn’t good just for preventing drain flies, but is also a good tip to stopping clogs or other eventual plumbing problems. For more information on how to keep your kitchen and bathroom clean, contact Kellermeier Plumbing today at 616-866-5134. At Kellermeier Plumbing, we pride ourselves on being honest and upfront with our customers and strive to provide our clients with the highest level of service.