After some days with different holders, clips and equipment for mounting the pump on different places on the body I was not satisfied. When I went to the toilet it was problematic, changing trouses was difficult etc. But then I got an idea. I simple found out that the best way to wear the pump was inside my underpants. Using a small sock and a safty pin the important detail that made my pump therapy perfect.

Here is the sock mounted to my underpants with a safty pin.

The pump is staying inside the sock.

Here it is inside my trouses. Very practical, and the buttons can be pushed.

From outside you can't see the pump.