Rockwell Labes -InVade Bio Drain Quart (32oz) ~ Eliminates Odors, Fruit, Phorid, and Drain Flies

This product really works! I recommend placing it in the drains overnight to ensure no water is running, giving it a chance to take effect. I noticed a significant reduction in fruit flies within just 24 hours of use. It doesn’t require much effort, making it a simple and effective solution. Highly recommended!

with the “volcano”: 1/2 c. baking soda down the drain, followed by 1c. vinegar, followed by as much boiling water as you can easily produce. Do this twice, 2 days apart. Then you can use this product every 3-4 days to control the gunk inside the drain, in which they live. The manufacturer implies that this product alone will kill the flies, but that’s not been my experience. It’s a control, and it work well as one.

I liked the product but didnot totally eliminate sewer flies.

When applied as recommended, say goodbye to drain-flies! We love this stuff.

This is a yearly staple for us down here in Florida. As soon as it gets hot and they bugs start flying we apply this to all the drains and within a day the bugs are gone. Is a must have if you love in a hot climate

Ain’t it does work

The spout allows you to squeeze the liquid and completely cover the inside of the drain and it definitely reduced the amount of drain flies that I was having problems with.

When I originally purchased this 3 years ago, it came, it worked and the formula was orange and thick. The last two times I purchased this size bottle, it came, it doe nothing and it is light yellow so a different formula. Not a good upgrade but won't buy this again at all.