Using the NERF Super Soaker Power Drench XL is super easy. First, you'll need to attach a hose to the easy - fill station. If your hose doesn't fit directly, use the included adapter. Make sure the water pressure is at least 35 PSI (2.41 BAR). Then place the blaster on the station to fill the tank and pressurize it. Once it's pressurized, you're ready for action! You can choose to fire powerful pulse bursts or empty the whole tank in one big blast by pulling the trigger. When it comes to maintenance, after each use, drain any remaining water from the blaster and the fill station. Store it in a cool, dry place. And remember, this toy doesn't need batteries, so you don't have to worry about that. It's a great toy for backyard water battles, but always make sure to play in a safe area away from electrical equipment and breakable items.