Important: Fountain should be placed on a flat, solid base. Fountains need to be on a level surface to operate correctly. The location you choose for your fountain should be firm and level, both for safety and the fountain’s performance. Fountains with a basin should be installed on a thin layer of sand, approximately 1” to 2” in depth, on top of a concrete pad, to reduce the risk of stress cracks to the basin and help with leveling. Pedestal-style fountains should be installed on a solid level foundation. If needed, a concrete pad can be used as a base to avoid erosion caused by rain, sprinklers or splash. It will also prevent the fountain from becoming unlevel.

Helpful guides: How to Install a Fountain on Firm, Level Ground · How to Clean & Maintain Your Outdoor Fountain
Note: The manufacturer is not responsible for the fountain tilting due to the ground settling, causing cracking or damage. It is the customer’s responsibility to ensure the ground underneath the setup area is solid and leveled. A leveled fountain pad must be used. If one is not used, it will void the warranty.