The mechanism inside the middle is called a clicker. As you could’ve guessed by the click when it engages. That’s a 2 seater. The adjustment on it is used to tune the bypass range of the small seat disk in relation to the calibration point/big seat opening on the water column, basically. Good job 👍
Can the capillary tube and bulb be replaced by itself with a new bellows? Mine just broke just inches outside of this device. I didn't see any mercury leak out.
