Technical Overview: How it works: Generally AquaDams® consist of two polyethylene liners contained by a single woven geo-textile outer tube. When the two inner tubes are filled with water, the resulting pressure and mass create a stable, non-rolling wall of water.
 | A single tube filled with water will not provide a stable wall or dam as the water builds up on one side of the tube the pressure on the wall of the tube begins to increase. |
 | As a result of the building pressure, the water is pushed from one side of the tube to the other side where the pressure remains low. As the water continues to move from one side to the other, the tube begins to roll. |
 | As water builds up on one side of the AquaDam®, the pressure displaces the water in the inner tubes. However, because the inner tubes are unable to roll the AquaDam® assumes a position of equilibrium and behaves as a solid barrier. |
 | In order to roll a filled AquaDam®, it must be tipped end over end. This would require lifting all of the water mass in the first column up and over the second column. Even if the water builds to the top of the AquaDam®, the pressure is far too low to provide enough force to lift the water mass and tip the AquaDam®. The result is a stable, non-rolling barrier forming a solid dam. | |