You will probably lose quite a bit of CO2 if your spray bar is 1 inch above the water surface and the water is splashing down.
Can you set the spray bar so that it is just at water level? That way, the water from the filter return is gently rippling the surface of the water; this is the ideal amount of surface agitation you want to have to prevent excessive CO2 off gas (diffusion).
I redid it so it is about 1/2 above the surface. I will go buy some adapters tomorrow so I can adjust the bar lower. With the holes drilled on the returns the streams are somewhat strong & usually the remedy to this would be bigger holes but that is not an option...too scared a shrimp might find his way in. So aside from me needing the spray bar right at the surface would the jet like stream affect anything?