TerroDrain Insect Killer - T590 Drain Fly Killer - Foam Drain Treatment - Drain Treatment for Drain Flies, Fruit Flies, House Flies, and Roaches

This thing works well! I used it for the dozens of fruit flies in my kitchen. It definitely worked on diminishing the amount. The smell isn’t too strong either. Just spray into the drain and wait for it to do its job. Real easy!

I noticed little black flies in my kitchen and thought they were fruit flies and gnats because my kids constantly leave the back door open in the summer and I have many house plants that attract fungus gnats. After cracking down on open doors, treating my houseplants, and using plug-in fly lights and fly tape -- I was still seeing the black bugs... After research I realized I might have drain flies! I ordered this product and it has eliminated my problem. The product is easy to use - simple aerosol can. It comes with a straw attachment so that I could shoot the foam far down my drain. After a few seconds it created a rich lather that foamed up into my sink fully coating the problem areas. While I only saw the flies around my kitchen drain and garbage disposal, I took the remainder of the can and proactively treated my laundry room sink, shower drains, and bathroom sinks. The can had way more foam in it than I original thought. It covered all the drains in my home with a bit leftover in the can afterward.

Did not kill drain flies. I wasn’t pleased with this product at all.Big waste of money for me.

Had a horrible infestation of drain flies. This was the first product we bought. I'm going to say it worked, but to be honest we spent an entire week treating our drain in many ways a couple times a day to get rid of the problem. We were just very impatient and wanted the issue resolved. However every other Terro product we've bought worked like a dream. This product was easy to use and not messy like others.

I was having an issue with nat’s out of nowhere in my kitchen sink. I tried several different things (bleach&water, flying insect spray) and the plastic red apple bug trap to no avail. We clean as we cook at my house so our kitchen stays clean so the nat’s are a mystery that seems to come every two to three years. I read the can and applied the spray just as laid out on the can per the manufacturer. It foams up into a rather thick foam that reacts kinda slowly. The next day the nat’s were no more. To this day they are no more. So for us this spray foam was the eviction notice we’d been looking for. Worked just as advertised.!.!.!.

Still tons of drain flies. I used half the can on two drains and there seem to be more afterwards. I then tried to use the rest of the can and it wasn't really "foaming" to fill the pipe. It's possible I needed a longer "straw"/distribution mechanism because the drain is deep, so I'm still giving this 3 stars. Perhaps if I bought more and continued use, it would help with our infestation but the first can didn't do the trick.

I have tried EVERYTHING for my drain flies. Doesn't matter, they come back each Summer. I've tried the stuff that "coats" the drain, all types of cleansers, it didn't matter. They were always coming backThis says to use every 2 weeks. After my first spray, I didn't see any. I know it said 2 weeks, but I did it again at 1. I've spread that out since I've had it and I have not seen 1 drain fly since spray 1.If you have drain flies, get this.

Seemed to work great.. used as directed in my bathroom drains. No more weird flies anymore