I thought the same thing might be the case and haven't ruled it out. I filled the base with 1/4 pea stone and attached the weighted tubing and then lowered it with rope. The rope is still attached so I could pull it up and try again. I am not sure how I could verify proper installation. Is this the proper method or should I try another way? There are 2 diffusers and it is at 10 ft which is the deepest part of th pond. Thought I would mention 70 ft diameter round pond. Thanks for the info
