Why 

1 : I wanted an easy way to move the pump without emptying the fountain or take the risk to put water in the usb connector  

2 : I bought a pump but it was not a usb connector ( forgot to check ) , the plug was too big for the holes

I did not print it yet , so I hope it's accurate  

for V1 … I did the “cut” in Thinkercad , and had to do a final cut for the insert in Prusa 

for V2 … It's was re design by a friend

Not sure I'll print it  as i would prefer to do one of the bigger models ( triangle , extra or rectangle ), but those are not yet “deep” ones , and there is not yet the splash guard with no leak version for it