Rockwell Labs IBDC032 Invade Bio Drain Gel-1 Qt

I've lived in my place for 20 years and suddenly drain flies appeared in my kitchen sink -- I had never seen them before. I believe they got started in drain sludge that must have accumulated over time (the sludge was not think enough to slow the drain, but evidently was thick enough to harbor drain flies). First, I used Drano, it helped, but did not completely eliminate the flies. So after a couple weeks, I ordered this product. After a two days of using it, the flies were completely gone. The flies have now been absent for a couple days. If the flies reappear, I will update this review. Note that I have followed up by using a drain snake to clean sludge in the horizontal drain pipe between the two drains in the kitchen sink -- but I only did that after all the flies were gone. I didn't find that much sludge in this horizontal pipe so maybe the culprit sludge was further down the line. BTW, I used FlexiSnake Millipede drain snake which I highly recommend for sludge cleaning since it's "bristley" (if that's a word!) -- but the Millipede snake is not very long so I may follow up and get a professional plumber to clean the full length of all my drains -- From reading many forum posts on the subject, I understand that cleaning out sludge is the most effective way of really getting rid of drain flies. However, short of that, this product worked quickly for me and was a lot cheaper. I'll save my pennies and have all my drains professionally desludged in a couple months. I used this product as follows on my kitchen sink: First, I squirted a couple ounces down 1) garbage disposal drain, 2) the other sink drain 3) bottom of dishwasher (don't forget that -- since it's a possible home of drain sludge). I then poured just a couple ounces of water down each drain -- enough to wash the gel into the drain, but not enough to overly dilute it. I put silicone mats over both sink drains (the kind you can use to cover bowls in the microwave). I also closed the dishwasher tight and put tape over the little opening of the dishwasher overflow which is next to the tap on the sink (if you do this -- don't forget to remove the tape later). I did this to trap any flies and keep the fumes in so they would effectively "gas" the flies and any larvae. Don't worry, the "fumes" are not strong or noxious at all -- just a mild orange odor that dissipates quickly, but I think these mild fumes may be effective against drain flies when confined to the drain. I left this set up overnight without running any water. Then I flushed the drains and repeated. So far, so good -- no flies. I may do this every month if I'm disciplined! Cheers -- and best of luck getting rid of your drain flies!

I purchased the Rockwell Labs Invade Bio Drain Gel after dealing with recurring drain smells in my kitchen sink and noticing a few tiny drain flies. I’ve tried a lot of basic enzyme cleaners before, but this one is noticeably thicker and actually clings to the inside of the drain instead of running straight down. I followed the directions and poured the gel slowly around the entire rim of the drain at night. By the next morning the sour smell was completely gone, and within two days I didn’t see any more drain fly activity. The consistency is more like a syrup than a liquid, so it coats the pipes really well. I also appreciated that the scent is mild and not chemical or overwhelming. I used it again a week later as maintenance, and it continues to keep the drain clear and odor-free. A little goes a long way—definitely more effective than the cheaper enzyme products I’ve purchased in the past. If you’re dealing with drain flies, buildup, or just constant kitchen sink odors, this is one of the few products that actually works the first time. I would absolutely buy it again.

hands down one of the best drain cleaners I’ve used. The probiotic gel clings to the sides of my drains, digests built‑up organic gunk and grime, and helps eliminate odors and drain flies fast. I noticed a real difference within a day — fewer smells, smoother draining, and no more nasty drain flies buzzing around. I also like that it’s safe for septic systems and doesn’t rely on harsh chemicals. If you want a gentle but powerful cleaner for kitchen or bathroom drains, this is a great choice.

I paid a bit extra to get this fast. Glad I did. I have a sink in the basement that draws all sorts of bugs since some earthquakes and torrential rains damaged my basement. I discovered the sink was clogged up and I saw what I now know was a long wing coming out the top. I plunged it out and the water started to run. Thought it was unclogged. Not so. So when I got this stuff, I followed the directions and left in in two days. Went down this morning and figured it would still be clogged since the reviews said this was not for clogs. But turned the hot water on, ready to plunge again, but this time the water ran great, constantly and I looked down at the hole in the basement floor where the water drains and it was coming out perfectly. So I can only tell you that so far, I'm more than happy. I hate dealing with plumbing and bugs and mice and all that stuff. But, when you own a house, you never know what you are going to run into and you may have to deal with it yourself. I also saw a gnat come out of my bathroom drain. So, I treated it. Left it covered all night. So far, no more gnats. It smells great and is non-toxic. It's safe for the pipes and plumbing but seems to do the job. So, at least so far, I highly recommend this product and will certainly buy it again.

Has not stopped the drain flies yet

This is my go to for the dread time of the year: phorrid flies and gnats. They work wonders on the drains, toilet bowl , and I even put a drop to clean the ac lines in my apartment! I will always be a customer!

This stuff actually worked really well when I had a bad fruit fly problem last summer. So happy it turned out well

This is not a pesticide which I was led to believe from a source other than Amazon. I'm using it and will read the info more closely next time!