@MarkusG Relative Facet noise
Did your parents, grandparents or their friends have a floor-standing Grandfather clock with a mechanical pendulum movement? BIG Tick-Tock? We had a big Grandfather clock in the living room and you could hear it all over the house. It had a special lever to disengage the hourly striker when we went to bed (thank God!)
THAT is about how loud a Facet pump is - Any solenoid pump is like that, really.
Now, make that tick-tock 4 or 5 times per second and you’ve got the sound of a Facet. 🤮