Thrips, no see ums. Whatever you want to call them are the bane of my life. Closely followed by pollen, sweat bees and carpenter ants. Borates don’t seem to do much. It’s those little orange specks you see. Or don’t see. They bite, they love the colors white and yellow. I can’t get rid of them. I can only get into the pool if it’s windy or cold until July. Nothing. NOTHING stops these evil critters from invading my pool. I swear they land on the pollen collecting and ride it like boats.