We have some kind of tiny gray bugs living in the drain/overflow drain of the master bathroom sink. Some of them come out into the sink basin. We have had an exterminator come twice and spray stuff down the drain and overflow. The bugs are still an issue.

Any ideas on what I can put down the sink to kill them so they don't come back? Ideally something not super harmful to people, given it's a bathroom sink?

Thanks!

Boiling water. Followed by more boiling water.

Only harmful if you spill it on yourself.

Also bleach.

quote:

Originally posted by Fenris:
Boiling water. Followed by more boiling water.

Only harmful if you spill it on yourself.

That's what I was thinking, but dry ice could be fun too.
I'm not sure of the effect on sealants for either of these. I'm no plumber.

quote:

Originally posted by Fenris:
Boiling water. Followed by more boiling water.

Only harmful if you spill it on yourself.

Also bleach.

I forgot to mention, I actually tried bleach before we called the exterminator.

Boiling water sounds like it's worth a try. Thanks.

If you mix ammonia with the bleach, you won't have to worry about any bugs ever again.

Of course, you'll be dead.

Really dead.

Dead, dead.

Dead.

Had those last year in our kitchen sink...ours were a bit like fruit flies. Out out some apple cider vinegar traps.

I use baking soda and white vinegar periodically to clean drains. It bubbles and foams and creates useful havoc. Followed with hot (or boiling water), done two or three times in succession, it might help as well. I try to get the baking soda as deep into the system as possible after the first dose (i.e., put some baking soda in and add a little water to carry it further downstream before adding vinegar).

Careful there! Don't use boiling water if you have one of those fake marble dust sinks. It will damage them, craze the surface. Also the shock might crack a porcelain one.

Can you provide a good photo of the pest...

Drain flies. Look them up.

quote:

Originally posted by RAMIUS:
Had those last year in our kitchen sink...ours were a bit like fruit flies. [Put] out some apple cider vinegar traps.

This ^^^^^

I was hoping you had a stink bug solution.

I will support the vinegar/baking soda suggestion. One advantage is cost. Even a big box and bottle should be less than $4.00. Be sure to get the overflow hole as well as the main drain.