i tackle this issue by boiling a pot of water. and i pour half a cup of bleach down the drain. pour half of the hot water into the drain. then repeat half a cup of bleach.
Bleach; it will kill the bacteria the gnats are thriving off of and kills any residual gnats or eggs. Best to use in ALL drains before bed, rinsing with a tiny amount of water to get it into the pipes so it has all night to do it's work.
Create a mixture combining a half cup of salt, half a cup of baking soda, and one cup of vinegar. Pour the mixture down the drain if you detect gnats near your kitchen sink or bathtub.
Pour a small dose of ammonia or bleach into your sink to kill any gnats in the general vicinity. Just make sure you let the bleach/ammonia sit and dilute itself for a few hours before using the sink for any other purpose, because bleach/ammonia is just about as harmful to humans as it is to gnats.
The simple answer is yes but with a caveat. While bleach can kill drain flies and their larvae on contact, it's not the most effective method for long-term control. Bleach's caustic nature allows it to clean the drain pipes and kill some of the larvae.
Boiling Water: Pour boiling water down your drains to wash away gnats and their eggs. Baking Soda Solutions: Use a mixture of salt, baking soda, and white vinegar to foam away bacteria in your pipes. Chemical Cleaners: For intense infestations, consider using a chemical cleaner like Drano.
If you don't have vinegar at home, bleach will kill drain gnats, but it's a potent environmental pollutant, so you're better off running to the store for vinegar, which is actually more effective for cleaning your drain pipes.
Sink Drains and Pipes: Gnats love the gunk that builds up in sink drains. To clean these areas, pour down boiling water mixed with liquid dish soap. This helps to break down the organic matter. Doing this once a week can keep gnats away.
The only way to get rid of gnats without killing them is to repel them with scents they don't like: vinegar, vanilla, pine oil, peppermint, lemon, eucalyptus, and lavender. Even dryer sheets could help. Of course, the first line of duty would be to get rid of the infestation's root cause.
Fruit flies and Phorid flies breed from organic matter like fruits and vegetables, food spillage, and garbage. Drain flies breed in drains and sewer tanks and soil contaminated from sewage. Gnats also breed in drains and are often are sourced from potted plants and fungi.
Pouring boiling water is quite risky as it might lead to a steam burn or scalding. Another thing to keep in mind is what type of material you are pouring in into. If you have a porcelain sink, it is likely to crack due to the heat. All in all, pouring boiling water down your drain will only cause issues down the road.
Pine Sol down all your drains (shower, sinks, kitchen drains, etc)! Works like a charm for drain flies and roaches! Pour 1/4-1/2c every day for a week, then once a week after that! Makes your house smell good too!
Cleaning your drains not only prevents build-ups and clogs, but it's also one of the best ways to counter a gnat infestation. There are several ways to do so: Hydrogen Peroxide: Pour half a cup down your drain to eliminate bacteria and kill gnats and eggs.
Control of an infested drain requires thorough cleaning and maintenance for at least 3 weeks or longer to break the life cycle. Adults may congregate at or near windows, but killing adult flies is not effective control.
"Combine 1/2 cup salt with 1/2 cup baking soda and 1 cup of vinegar and pour down the drain." Leave it overnight, and in the morning, pour boiling water down the drain. "This is a natural remedy that will clean the plumbing pipes and remove the breeding grounds for these flies," he explains.
Vinegar and Baking Soda: Pour a vinegar and baking soda mixture down the affected drain. The fizzing action helps break down organic matter and kill gnats. Follow with boiling water to flush out debris. Boiling Water: Regularly pour boiling water down your drains to help kill gnat larvae and wash away organic material.
Gnats are attracted to anything that smells fruity and sweet. Therefore, fruit-scented hygiene and beauty products tend to draw gnats into the house. Rotting food in the drain. A buildup of food in the drain would, over time, result in an infestation of house gnats.
A cup of household bleach is generally more than sufficient to kill most drain flies, and all you need to do is pour it down the affected drain.
Pour 1/2 cup of dish soap (it doesn't have to be Dawn, but should be a soap that cuts grease) down the drain, followed by the boiling water. “Be careful not to splash yourself," San Angelo warns. After you've done this, you need to wait it out—it might take a few hours to have an effect on the sink drain.
While this chemical might get rid of some larvae, bleach passes quickly down the drain and does not penetrate the thick build-up where eggs are deposited by the female drain fly and larvae live. As a result, in most cases, bleach does not get rid of drain flies.
If you see gnats hovering around your sink and pipes, bleach can do the trick. Mix half a cup of bleach with a gallon of water, and then slowly pour down the drain. Make sure to flush with hot water. You can always repeat the process if gnats return!
You can also use bleach or ammonia to kill drain gnats or flies. Dilute the bleach or ammonia and pour it down the drain. Avoid the temptation of mixing these two substances (ammonia and bleach) as a way of getting better results. The resultant concoction will form toxic fumes that may harm you or your family members.