It took me a second, but I think I have the design figured out.

I think it'll work. If you use the black tubing that Omaha used, that's the stuff that they normally use for drip irrigation. It won't be straight, it'll be curved like Omaha shows in his picture.

I'm assuming that the black PVC will be coming up from the bottom. You are showing a side view of the grid that lays on the pond bottom, correct?

Every 6" might be too close together. If you start getting Algae growing on it, it might grow together and create a solid block. It'll be interesting to see what others think.
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).