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

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.

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.!.!.!.

If you could actually use the entire can, might actually have something here. I bought 3 cans of this, was able to mostly discharge one of them after considerable effort and screwing around. There's approximately a third of one of them left, given up on it. The last one is at least half full still, going to try and get a little more out of it. A disappointing waste of money and time really.

Two weeks after the first use and I’m afraid to say it out loud but we have ZERO drain flies.We’ve been inundated every spring and summer for the last few years. Biblical plague level. Nothing has worked: baking soda, boiling water, other drain treatments. Nothing. Until Terro.I will buy this every year until I die.

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.

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.

So far, this product has been effective against fruit flies. It is easy to use, and it doesn't create mess or odor. I wish I had discovered this product sooner. It is worth buying to help reduce flying insects in your home.

Worked like a charm! Spray some right into your drain, and none of the pesky fruit flies come out. I respray every two weeks and I haven't seen a fly yet!