LTCANOPY 100 Gallon Foldable Water Bladder Tanks - Collapsible Soft Drought-Resistant Fire-Fighting Agricultural Water Tank 330LLTCANOPY water storage bladder bags can be hauled to remote locations in pickup trucks, and small trailers. You can easily deliver water and fertilizer to distant gardens, trees, and other landscapes. You can even use it as an RV waste tank or for chemical storage. Four heavy duty d rings help secure it during transportation To drain, simply use the empty port with a shut off valve and you're ready to fill water troughs, water your garden, and more.