Here is the scrubber. It will have two 12"*18" screens and eventually a control valve in the middle. I will be able to light one side or all four sides of the screen when I start feeding more.

I am trying to figure out how to get the best even flow on the screen. I tried wrapping the screen around the pipe but the ties are messing up the flow. I tried sloted pipe and drilled pipe. Sooner or later I will figure something out