From the pics it looks like there is a cap on thie overflow, and the rod actually closes the cap some, that is why it will raise and lower the level in the tank
Correct - now this confused me further - recall there is an overflow tube on each end of the tank - could it be that I could set, via the overflow control rod, the overflow level on each end of the tank seperately?? like I said, I have corrected the level problem - the tank is perfectly level now, but with their control rods set differently, the water reaches up to a different level on the overflow tube cap..
weird.. I'm probably rambling, just trying to figure out this new system, it's my first experience with an overflow/sump mechanism, and the "JetStream System" doesnt seem to have much info on the net about it, user testimonials etc..