Ideally, 1 grownup must be in the pool, with a further within sight and listening to, to detect any indicator that a boy or girl may well be in issues. Trouble can brew in your possess yard -- or your neighbor's -- when it will come to backyard pools. Outdoor pools also have extra possibility: The mixture of standing water, bare skin and foods at pool get-togethers lures mosquitoes and some styles of bees.