While inflatable pools are a fantastic idea, and are fun in theory, there are some inherent issues with safety and liability for both the manufacturer and operator. First, various governing bodies have extraordinarily stringent guidelines for pools, and "pool slides." The testing and guidelines are virtually impossible to adhere to with inflatable products. Because we produce so many inflatables, it's critical for us to follow guidelines carefully. Second, the landing zones of our slides require proper impact attenuation. We achieve this by using inflated bases, but if we were to fill these areas with water, the bases would collapse under the waters weight, causing a potential drowning hazard as well as an improper landing zone, as well as adding hundreds of lbs of "user weight" to the inflated body, putting added stress on the fans. Additionally, the water can collapse the outside pool walls, allowing water to drain, and the potential for a rider to slide off. This would be even more dangerous should a rider improperly slide head first directly in to the ground in a situation where the landing zone was collapsed from water weight. Even without a "contained pool," these slides require very little flow to operate, and water settles into the grooves of the landing zone for a fun splash. This is safer, and better for the environment, using far less water. It also causes less headaches for the operator, as a full pool leads to a number of draining challenges (and sinkholes in renters yard). Keep in mind, while shopping for water products, even if the unit includes a contained pool, continuous water flow is required to the slide to properly lubricate, so water will flow into the use area outside of the inflatable regardless. While Blast Zone does not manufacture slides that discharge the user directly into a contained, inflated pool, for the users safety, keep an eye out for items that include splash areas as auxiliary features, where the user can splash and cool off, without dropping directly in from the slide.