AKuhlmann
Member
The bubble grows when it disappears but tends not to be gone completely.When the white stuff is there, is the bubble sometimes also present, or does it appear when the white stuff disappears?
The theory of a reversible reaction so far makes the most sense
Just found this - admittedly it's from 2010:
https://forums.ybw.com/threads/silva-102b-h-compass-replacement-fluid.254566/
Thanks pwhole! That should help me repair them