An unusual problem

[Smcart5]

I have a problem which i am unsure if falls into a plumbing problem or pest control but i am going to try here first as some of you may have experience with this.

In the morning after night shifts i keep finding small and very distinctive flies hanging around my bathroom sink, specifically the overflow, the window is not open at night so i presume they have crawled through the waste pipe and into my bathroom, they tend to hang around the sink and nowhere else in the house, does anyone have an idea about what is causing this and how i can stop it?

The sink does not smell at all so i am puzzled as to why and how they are getting in, the trap seems to be intact though i won't remove it because the pipework is a bit dodgy and the estate agent is slow to get any work scheduled.

 

[dontknowitall]

Maybe they're hidden in the basin's overflow (above the plug hole) in the ceramic part and nowhere near the waste pipe? If you squirt some deodrant (for example) this might disrupt things a little and blow them out ... just a thought.

 

[Smcart5]

Its not like that, i get rid of them on a daily basis, i wash them down the sink, swat them, but they seem to be back the next day

 

[dontknowitall]

I was meaning that the egg/maggots might be in the overflow area and using a pressurised can ... etc

 

[WaterTight]

Yeah, by all means try anything you can think of to spray down, around, through to get rid of them.

But because something is in the pipework/overflow/waste that they're there for, chances are that either you (or someone who can repair damage/leaks if it's a dodgy/fragile set-up) needs to dismantle, investigate, clean thoroughly and put back together.

 

[cjg]

bleach it all , down plug and over flow, leave it for an hour if in there should be dead by then, chris..