If you live in Northwest Indiana you’ve seen them before. They don’t have the annoying buzz of the regular house fly, and they don’t do flybys over your dinner plate. In fact they seem to float quietly along, not really heading anywhere or intending to bother anyone. But they are a nuisance, and they always seem to appear out of nowhere, usually in the kitchen, sometimes in the bathroom.
Drain flies can take over any drain in the house, but more often than not they show up close to their main food source, slime covered garbage disposals in the kitchen sink. You can find them in bathroom sinks where gunk is beginning to build up around drain plugs, but most likely you’ll encounter them in the kitchen. They lay their eggs in the gunk coating the grinding mechanism down in the disposals. The problem is, although hot water and ammonia can get rid of the adult flies it does little to eradicate the eggs. And simply running the disposal even with a standard disposal cleaner won’t get rid of the gooey stuff. You need to use an enzyme like DF5000 that will eat away both the slime and the eggs, right down to the metal. Just keep in mind, the more crud deep down inside the disposal, the more applications you will have to use to completely clean out the drain. How will you know when the drain is clear? When the flies are all gone you’ll know your job is done.