An attractive and economical alternative to concrete, the popular Plia-Dike® is constructed with galvanized wall panels that will not rust, crack or corrode. Plia-Dike®'s polyethylene and synthetic rubber construction is unaffected by freeze and thaw cycles and provides resistance to many chemicals. Plia-Dike® components also include an optional rain and spill capture elimination sump and dry sump spillage alert system.