Bubbles from electrodes

I repaired / modified my Intex chlorine generator when it quit working.  I now get a steady, significant stream of bubbles leaving the cell plates.  After a few hours of operation, free chlorine test strips indicate a safe level of chlorine, but I’m back to zero the following morning.

I read somwehere that salt chlorine generators should produce sodium hypochlorite, not pure chlorine.  Is the bubble stream an indication that I’m getting chlorine gas instead?

Thanks