BioBidet very noisy fill cycle?

I have a new BB-1000 and after a flush, the fill cycle is VERY noisy. Sometimes it happens the whole time the tank is filling. Other times, I can only hear the toilet tank filling for the first half and then the noise starts. Maybe something is loose or the filter needs a break-in period? I can feel vibration associated with the noise by touching the flex tubes for the water to/from the BioBidet.

Thanks.

Make sure the shut off valve to the toilet is open all the way. Sometimes a loose washer will vibrate if not opened all the way.

I just checked that.... It's definitely open all the way. Maybe something with the new angle stop and the connection to the bidet hardware?

Then the next thing to check is the toilet fill valve.

The source of the noise was the included 3/8" to 1/2" adapter that connects to the 3-way valve. We swapped out the 3/8" angle stop and put in a 1/2" angle stop and the noise is gone. Thanks for the suggestions!