NSFW
Another variation of my bathtub slide! Now splitting in 2.
See other versions here:
V1: https://www.printables.com/model/1266157-bathtub-fun-fountainhead-v1
V2: https://www.printables.com/model/1268115-bathtub-fun-fountainhead-v2
The opening for the faucet is 46x34mm. I assume you should scale it - either in all or some dimensions - to fit your faucet.
I recommend printing as shown in the screenshot, that worked nicely for me, no supports.
The author marked this model as their own original creation.