Can ETPs Be Designed for Mobile or Temporary Installations? A mobile or temporary ETP brings water quality under control for projects that last only a season or longer term work that may shift from one place to another. This approach saves clients, time and money when compared with building a fixed plant. Visit the link for more information: https://www.netsolwater.com/can-etps-be-designed-for-mobile-or-temporary-installations.php?blog=6946