As h2o rises, Mayim flood barriers are stored in place due to the body weight of h2o, which presses the L-formed barriers into the ground down below and in opposition to the adjacent panel, supplying ballast, rising the seal and maximizing grip. JamesJames one,05622 gold badges99 silver badges2121 bronze badges https://docs.google.com/presentation/d/19JxFSBiquY6qCcjAYUjWyyusjE5Cd9IARNjCD0vkIvc/edit?usp=sharing