The Aquatan free standing AQUADAM® is an ideal ‘just add water’ instant dam system. The dam folds in half to fit onto a LDV and can be moved as often as needed. AQUADAM® needs no concrete or mesh wire support and does not need to be kept full to stay standing. Made of strong, flexible High Density Polyethylene (HDPE) and weighing 25kg to 35kg, it is easily handled by just two people. The HI-DRILINE® material is UV resistant and literally lasts a lifetime.