A good 'extra step' after filling/refilling your tank
After the water is changed for an ultrasonic tank, I have a small step I suggest but many aren't aware of. I think I hid it in the manual somewhere :).
First what is Degassing?
Degassing and defoaming of liquids is an interesting application of ultrasonic devices. In this case the ultrasound removes small suspended gas-bubbles from the liquid and reduces the level of dissolved gas below the natural equilibrium level.