It is a common misconception that Funballz needs a large area to be used, and it is our experience that swim centres are positively surprised when they test our products and see how little space they actually need.
Two Waterballz needs apx 3*3 meters to be able to move freely; there should be enough space for normal activity in the pool at the same time.
Three Waterballz can fit on 5 * 8 meters. The area used can easily be regulated by using swim ropes floating barriers, etc.