Yes, you can certainly re-use them. Once activated, Miracle Sandbags will remain active until the water inside begins to evaporate. The time taken for evaporation is dependent on environmental conditions. If left in position, they will shrink while evaporating and grow again when re-exposed to water. Over time the Miracle Sandbag’s performance reduces until they cease to function. Once again, the time taken before Miracle Sandbags cease to function depends on usage, environmental conditions and how they are stored.
