Using this water slide is a breeze! First, find a flat and open area in your yard. Lay out the water slide and connect it to a water source. The self - sealing water balloons come pre - made, so just turn on the water and they'll fill up fast. Then, get ready to slide down and splash into the balloons for endless fun. When you're done, turn off the water and let the slide dry before folding it up. Keep the water balloons in a cool, dry place to avoid damage. And always make sure there's adult supervision when kids are using the water slide.