Another aspect that is often overlooked with stainless steel plates: The plates must be properly conditioned for maximum production of HydrOxy.
The pre-conditioning process only takes about 24 hours. The remainder of the conditioning will occur in normal use of the cell and may take several weeks to demonstrate peak efficiency.
Once the Catalytic Layers are formed on the plates there is a considerable increase in the amount of HydrOxy produced.
Three amperes for a low voltage cell is simply not enough; they're designed to operate at much higher current.