The air goes to the bottom of the scrubber and it comes out from the top and goes outsideOne last question - is there air flowing through the scrubber, and if so is it going from top to bottom, or bottom to top?
That hole there opens with a screw type of a cap and I need that for maintenance of the sprinklerThe flat surfaces on top of your tank are for making plumbing connections.
I dont know how I can incorporate this idea to my present designHere is another way to get the job done. This way would require (4) 6" 90 degree elbows. The bottom of the pipe in the tank should be under the media but above the fluid.