4 Ways to Fill Up a Water Balloon - wikiHow
2021/6/29· Gather large milk, juice, or water jugs, rinse them out if necessary, and fill them with water. Bring them along to the park so you can refill the tank and make more balloons. Use the water in the tank to make one batch of balloons, then refill the tank with the jugs and make additional batches. 3.