yeah, the only two issues i have with my stone tank (other than gurgly sometimes) is that stupid ring at the bottom with the black wire attached to it (has not broken but doesnt like to stay in the bottom all the time) and the 2nd one being that when i screw on the top cap, the innards like to turn also lol... which is why im upgrading to Viva Nova tank![]()
What worked for me was to remove the expansion ring from the base and screw the tube and coil assembly into the base as tightly as possible so it can't rotate when you screw the top cap on.
Errol