GNATS Problem?!? I have a serious gnat problem that of late erupted there...

I have a serious gnat problem that of late erupted there be like 2 a week ago very soon they are everywhere! Does Vegetable Oil work like the vinegar near dish soap?
Cracks surrounded by fresh dried sand/cement?
Answers:    what sort of gnats are they..you need to address the source not the gnat. Fungus gnats you stipulation to treat the soil of contaminated plant...some gnats are from roting onions / potatoes, make sure within are none about...fruit flies, will be red surrounded by color...get rid of rotting over ripe fruits. gnats coming from drain, verbs the muck out of the garbage disposal and bring in sure there aren't any leak
When planting onions...?
do you have a unusual house plant? this tends to create gnat habitat. you may need to bomb your house and take rid of the cause.
How do I hold on to child's pool...