I don't care about the water level in the tank. It's flushing just fine. But I'm trying to raise it, temporarily, in the BOWL, so I can let the boraxo hang around long enough to dissolve the hard water line. But when I add more water to the bowl it just keeps dropping below the hard water stain line. EDIT: Watched another video, and now see the two water levels are related. Will try this; hope it works on a low-flo system.
Tightening cross tip screw raises the level & loosening the screw lowers the water level. That's all you need to say or show. Right=raise the H2O Left=lowers the H2O. Simple & no need for superfluous added embellishment. Thanks!