Green GobblerFruit Fly Killer+ - Kills Fruit Flies, Drain Flies & Sewer Flies, Gel Treatment for Use in Sinks & Pipes - Safe for Septic Systems, 32oz - Up to 8 USES (2 Pack)

I had an abundance of fruit flies/gnats in my house that seemed to be coming from the drains. I use this product and let me tell you within a day or two they were gone. I poured it into the sink in the tub and let it sit for 30 mins and the ran hot water and it resolved the problem

This product works! I've struggled with sewer flies for 2 years on and off. I tried boiling water and bleach which worked for awhile then they'd be back. I used Green Gobbled once and the flies are gone!! The trick is to find out what drain they are nesting in, but I treated all my drains just in case. I will a always have a bottle of this in my home.

Followed directions and it actually worked.

It worked great. I recently moved to this senior building but I started seeing gnats and fruit flies. When it poured it in the drains in this apartment. It worked instantly and last a long time. I will purchase it again. I have told others about it.

Works ok but not as good as advertised

Poured it down the drain and the gnats were gone in about 24 hours. Also smells like citronella so that’s a plus!

Gnats or fruit flies multiply when using this stuff.

Excellent product. works great