Using your 24 - gallon wheel well water tank is easy. First, make sure your van is one of the compatible models as listed. The tank comes with a mounting kit and a plus nut tool, so start by using these to install the tank on either side of your van's wheel well. If you want to use the internal level sensors, you'll need to purchase the KUS sensors separately (PN: S5U - 15). Note that this tank won't fit dually vans. For maintenance, keep the tank clean regularly. If you notice any issues with the tank not performing properly or it's defective, S&B will replace it under their Million Mile Limited Warranty as long as it was purchased from an authorized dealer and used under typical driving conditions.