Remixed holder for pool-cleaning stuff. My modified model can be mounted on a wall or a fence, as you want.
Printed from PETG (because of sun/water resistance):
0.2mm layer hights
Infill 35% or more
support: not needed
Use three M5x30 screws+nuts
The author remixed this model.
Minor format adjustments. The basis remained the same. The main change was remodeling of the holder from pole mount to a wall mount, or you can placed it directly on the fence, if you want.