4 Natural Ways to Get Rid of Drain Flies & Sewer Flies

Are you noticing a lot of small flies near the sinks and shower drains? Try using these four natural remedies to get rid of the drain flies and sewer flies.

How to Get Rid of Drain Flies

Drain Gel Sink Flies

1. Pour a Cleaner Gel into the Drain
Kill the drain flies and the fly eggs by pouring InVade Bio Drain Gel into the drains. This drain gel is made of citrus oil and natural microbes.

Before they poured in the drain gel, a lot of people had success killing the drain flies by snaking the drain to get rid of any debris (e.g. hair) and pouring hot water to kill the adult flies.

2. Set up an Apple Cider Vinegar Trap
Flies are attracted to the smell of fermentation. Set up a drain fly trap by mixing apple cider vinegar and a few drops of dish detergent in an open cup.

Leave the cups next to the drain for a couple of hours. The vinegar will attract the flies and the soap will cause the flies to sink and die.

Drain Flies Vinegar Trap

3. Snake out the Organic Debris
It’s very important to get rid of any debris that’s clogging up the drains because that’s where the drain flies lay their eggs. Get a drain clog remover and start fishing out as many debris (mostly hair) as you can. You might be shocked by how much gunk comes out from the drain.

4. Place Masking Tape over the Drain
Are there multiple drains at home? Not sure from which drain the flies are coming from? Cover each drain with masking tape and leave it there overnight. Check the tapes the next morning to figure out which drains are the most problematic.

Caution Against Baking Soda + Vinegar

Some guides will suggest using a combination of baking soda and vinegar to unclog the drains. We would recommend against using this method.

One simple experiment found that the combination of baking soda and vinegar is ineffective against grease-clogged drains.

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