Sorry, I didn't mean in large amounts like that. That is nut's!

I read that if you take a tblsp of dawn and mix it with water in a spray bottle and then spray a light layer over the top of the pool, this prevents the bugs from breaking the surface and getting air, so they drown.

Like I said, I don't know personally if this works, but the people who posted it said it worked for them, but I think they had an above ground.