The balls won't come down the slide on their own, they should help as the slides are not properly designed for gravity. One of the windmills is supposed to run on water, but the assembly curves in too much and doesn't get water, so it stays there. Also, the 2 middle sections are easy to tip over and the only way to pour water out of it after filling is to lift it up and pour out the water. The Little Tikes Spiralin' Seas water park game table is a lot better for $30.
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