Measuring in at just 2 to 5 millimeters about one eighth of an inch drain flies are pesky insects that tend to congregate around standing water.
Little flies in bathroom sink.
Drain flies are a nuisance and the problem only gets worse if they re not taken care of.
Drain flies aka moth flies can be a common but harmless nuisance.
If you ve been noticing small flies buzzing around the drains in your kitchen or bathroom you may have a drain fly infestation.
Why drain flies like your bathroom.
Even those with septic tanks are no stranger to drain flies because of the fact that they need stagnant water in order to successfully breed and create.
Drain flies are small measuring an eighth of an inch which is about the size of a fruit fly or a gnat it s easy to confuse them as a matter of fact.
Specifically you re likely to spot drain flies near sinks and showers that are stagnant for a time like after a long vacation or used very infrequently such as a guest bathroom.
Wings and body are covered with long hair.
House flies they are gray in color about 4 to 8 mm long with four dark gray stripes on upper body.
Drain flies they are about 1 5 to 5 mm long with a light gray or tan body.
These flies are most commonly found in areas where there is standing water which is why they are usually found in your bathtub toilet drain and sink.
But in commercial settings particularly those that serve food it becomes even more important to keep drain flies under control.
Adult drain flies love to feed and breed in slow moving or clogged drains.
They routinely show up in kitchen or bathrooms where they lay eggs in the gelatinous organic slime that can develop in sink drains.
Fruit flies they are dull yellowish or brownish black in color.
With kitchen drains bathroom drains sinks and grease traps restaurants are a drain fly s paradise.
Commercial restaurants are a haven for sewer flies.
Also known as moth flies sewer flies and filter flies they are gray or taupe in color with small rounded wings.
The gnats most likely to occur in sinks and sink drains include fruit flies moth flies and to a lesser degree phorid flies.
Finding a swarm of small gnat like creatures flying out of your sink overflow hole can be unsettling.
Gnats they are about 4 mm long delicate dark colored flies with long legs and antennae.