My umbrella fountain is splashing
This type of fountain is quite a splashy design, its an inherent characteristic. You may be able to reduce the splash to some extent by turning down the pump, removing any jets at the top of the rod which holds the umbrella and very gently bending the support rod to centralize the umbrella over teh pump chamber. If you do this last step ensure you firmly support the end which is fixed into the ornament whilst doing so