Forgive me for my poor artist rendering but I will try to explain. What I plan on doing is running a Uv off of my return pump. I am going to install on 1/2 pvc line on manifold that has a flow meter from there it will flow through the Uv light and back into a T on the main return line sending back to display. Here’s the picture now looking at picture it looks like I can’t plumb back into return with T because it will want to flow backwards into the Uv. Should I just dump it back into return section? My only issue with that was I didn’t want to stir up a bunch of detritus