Kids and adults alike will flock to the “membrane pool,” a splashy feature of the newly-restored Arthur J. Will Memorial Fountain, located within the just-opened, first two sections of Grand Park in Downtown Los Angeles. Designed as an interactive component of the Memorial Fountain, the “membrane pool” maintains a depth of a quarter-inch of water, with jets streaming water in the air. Welcoming kids and other to cool off in the heat of the summer, the feature is expected to rival The Millennium Park Fountain in Chicago as the most popular fountain in the United States.