The present invention concerns embodiments of a portable fluid-transporting system for mounting on a land-driven vehicle, such as a loader, and methods for their use. In an illustrated embodiment, a fluid-transporting device includes at least one fluid container, or tank, that is mountable to and completely removable from a vehicle. The container is configured to be carried by the vehicle such that at least a portion of the container is supported in front of the forward end of the vehicle. In particular embodiments, the container is generally U-shaped and includes a forward-container portion and first and second side-container portions extending from respective ends of the forward-container portion.