Yes the water is clean, but that's only for sure until it comes out from what is basically inside the toilet bowl. If that opening is dirty, the water will be dirty.
The spray head doesn't stick around in the middle of the bowl for you to poop on it. It stays tucked away inside (or below) the bidet machinery until you activate it, at which time it extends only as far as it needs to. When it's done spraying, it automatically retracts to its former position.
The water comes out of a little nozzle on the end of a wand that extends only when used. While you do your number 1 or 2, the wand is retracted inside the toilet seat (not bowl, above the bowl). Plus, after spraying, the nozzle will auto-clean itself before retracting.
