Slip 'N Slide

Do they really work? Yes, I found out that if you don't live within the city limit that public water is accessible, forget about buying one. We have a home version pressure tank and this thing did not work the way it supposed to.
Oh, and if you don't have the perfect even ground, it will not work either. I wonder whose perfect world this thing was made for? Not mine for sure. My children only used it until we got our swimming pool cleaned. After that, it's now sitting in my garage and collecting dust.