Kinzua Environmental Fly-Zyme Enzyme Drain Cleaner Gel, Organic Waste Degrader & Odor Neutralizer, 32 fl oz

I've tried all of the tricks and suggestions from the World Wide Web unsuccessfully, I'll add. I've poured hot water with dawn, baking soda, vinegar, drain cleaner, sticky traps, vinegar traps, cleaning every place I can imagine they would be but can't seem to rid my house of those irritating fruit flies. I don't know how I even managed to get them but I know fruit won't come in my house without washing it immediately before stored. I poured this into my drains and it seems to be much thicker than any of the ones prior that I've used. The smell is pleasant. I'm happy to know it's safe for my septic and pipes. It's only been a few hours and I am already seeing less than this afternoon. Fingers crossed. I may have found the solution. I would go ahead and say this is exactly what you need if you have a pesky gnat problem.