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Old 04-14-2011, 12:01 PM   #16
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Drain fly infestation


(copied from another thread)

1. Look inside the toilet tank.

2. Get some transparent plastic sheeting. Cut it into convenient shapes and sizes, for example 2 feet by 10 feet and tape it over sections of the room for example along one wall where it meets the floor or along one wall where it meets the ceiling. You will need a strip long enough that the space behind it is closed off at the ends also. Wait a week. See if the flies originate inside the closed off area as evidenced by many being trapped back there. (The plastic sheet is to narrow down on the origin, not in order to trap the flies.) Do two or three areas at a time if space permits adn you have enough plastic sheeting. This is a trial and error process as you move the sheets of plastic around. Don't forget the front of the tub as it meets the floor.

If you are ambitious and have a large enough piece such as a painter's dropcloth. you could go from floor to ceiling, sealing around both side walls, splitting the entire bathroom in half. You can peel back one side to go in and out if you blocked off ths shower and not spoil the test, provided you retape it within a few seconds each time. After you narrow it down, use smaller pieces of plastic within the affected area.

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Old 05-07-2011, 11:32 PM   #17
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Drain fly infestation


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Originally Posted by benjo View Post
Hello, and thanks for reading my post.

We live on the 30th floor of a New York City apartment. I have a drain fly infestation, and according to my Superintendant I am the only tenant that has complained.

The flies seem to be based in my master bathroom, but we can not locate the source. Also even more than my bathroom the flies congregate around the windows all over my apartment, in all three bedrooms and the living room by the windows. Every day there are tons of them by the windows, dead and alive.

I have taped over the drains and found nothing. I have poured bleach down the drains many times. The exterminator has poured foam down the drains. I have left cups of oil as someone suggested around the apartment to try to locate the source to no avail. I have had the a/c units checked. The plumber is coming tomorrow to snake the drains. I do not know what to do! I have no idea where they are coming from. This is driving me crazy, we must kill about 50 a day. They are everywhere!

Does anyone have any suggestions at all? Have you heard of photo imaging to find moisture behind the walls? How does a moisture meter work? Will it detect moisture behind the tile in my bathroom? I am not in the business, I am a housewife but I am handy and I am willing to spend money to get rid of these f***kers. I am going bananas here and I am obsessed with getting rid of them.

Thank you.

Lori
I too am having the same issues and have done all the same remedies you have done. Poured bleach down drains, diff types of vinegar throughout the house. The ugliest site was the fly tape. Never knew there were so many and they are still a huge problem.
So please keep us posted if you come across a sure thing that put a dent in these fkers.
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Old 05-07-2011, 11:34 PM   #18
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Drain fly infestation


I too am having the same issues and have done all the same remedies you have done. Poured bleach down drains, diff types of vinegar throughout the house. The ugliest site was the fly tape. Never knew there were so many and they are still a huge problem.
So please keep us posted if you come across a sure thing that put a dent in these fkers.
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Old 06-12-2011, 05:28 PM   #19
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Drain fly infestation


I had an endless number of gnats for weeks. I left a vacuum cleaner in the bathroom and left the door shut from the master bedroom. 3 times a day i would suck up hundreds of them from ledges, floor, counter tops, tub, etc. they were behind mirrors, pictures etc. - you get the picture. I taped drains, overflow holes, sink holes, shower and tub holes. twice I fogged , sprayed and shot borax powder along the walls. Everything I tried was to no avail. I sprayed in window frames - inside and out. I tapped around the bottom of the toilet bowl. I still had gnats. One day i closed the door to the toilet and taped it shut. I ended up with alot less gnats. So I now had an area in mind to focus on. I placed more tape around the base of the bowl that sits on the floor. The next morning I had just a few of the gnats. I found a tiny area that the tape didn't completely cover so i put more tape over that area and the next day i had no gnats. I have a septic system and these things breed non stop. I never had this problem before and hopefully never again. It was very frustrating.
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Old 07-07-2011, 11:32 PM   #20
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Drain fly infestation


OH NO!!! I think i found where these drainflies are coming from. A few years ago I had a leak on a copper line under my house slab.... Yes my house is on a slab, well anyway during the repair i noticed my heat duct that isnt used anymore was rusted and damp, fixed the leak and filled the hole in the floor and we were good. well a few years later (now) im finding these drain flies. pulled off a floor vent that was taped off and holy cow, im not sure how to get rid of them in this situtation i kinda wish it was from a drain issue, I need help i will read anything thanks s.e. michigan.
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Old 07-11-2011, 11:44 AM   #21
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Drain fly infestation


To All Drain Fly Haters -

I have been dealing with my drain fly issue since March 2011 and the end is finally in sight. I wanted to post my story in case anyone could gain additional insight into their problem and save them time and money in solving the problem. I did not have a typical drain fly issue (i.e. flies coming from drain, pour drain-x, or another chemical, down drain and poof problem solved). My flies were coming between the tile floor in basement and the base molding of the wall. The wall was an exterior wall and I found water coming in-between my bricks about a foot below ground level. I called a plumber and after looking at it and believed it was due to poor gutters that caused water to sit next to my house and the water was settling under my foundation. Spent $1k+ on new gutters and bugs were still in the basement. Called a new plumber and asked him to camera scope my pipes. My 50+ year old cast iron pipes had so much grease built up from previous owners (just bought home last July) that the plumber couldn't even see the pipe. After $250 to hydro-jet my pipes (and another re-scope) we found a 3 foot long hole in my pipe.

Now for the fixing process. My basement is 75% finished and, of course, the broken pipe was under my tile floor complete with a wet bar. So without destroying my basement, and my wallet, I decided to go with the Nu-Flow epoxy coating fix, which comes w/a 10 year warranty. Before the process could begin I needed a clean out installed. My 50 year old home did not have one (not part of building codes back in the day). I have read many posts saying this is not required but until you get a professional plumber to scope your pipes and get a true understanding of how your pipes are connected you cannot make a definite conclusion that you do or do not need a clean out. So after $650 for a clean out (guys had to jack hammer through 6 inches of concrete then dig another 1.5 feet down to the pipe...my pipes were buried and this may be an extreme case). Now we are ready for the nu-flow and after 2 days to prep and lay the nu-flow my pipes work and the bugs are dying off. I may not see the bugs completely die off till all the ground around the pipe dries out but their initial numbers dropped drastically in the first week. Nu-flow still wasn't cheap, about $2k, but it was cheaper then destroying my basement fixing pipe, and then re-finishing my basement.

Sorry the length of the post but I spent many hours trying to find posts with similar problems and this thread had the most posts and useful information and I wanted to share my story. I hate these stupid bugs but they did alert me of a much bigger problem that needed an immedate fix. Good hunting to all drain fly haters.

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