Keep your kids safe while near pools with these tips, and check out the American Red Cross website for more ideas:
Never swim alone. Always swim with an adult.
Take swimming lessons!
Learn to float and grab the wall for safety.
Never play with toys near the pool. Parents, make sure you always pick up toys from the perimeter of the pool; keeping them out will tempt children to play unsupervised.
Wait at least 30 minutes after the last thunder / lightning prior to re-entering the water.