Does a return manifold have to be above the sump?

[HighChiefKC]

I’m plumbing a second return pump to use for a manifold system for possible future needs and a BRS Carbon & GFO reactor and a UV. My setup
Is I have a 225g in wall build on a DIY stand. The sump is perpendicular to the tank behind it in a fish room. I have nothing but empty space under the tank. My question is, can I plumb the return so that the manifold goes under the tank stand, a few feet away AND lower than the sump? I was going to mount the UV next to the stand.

I didn’t know if there’s enough pressure after coming out of the carbon reactor in 1/2” tubing to feed up and over to the sump? Up distance would only be a few inches. And over a couple of feet.

My only concern with everything under the tank would be a leak but hopefully that wouldn’t happen. I just assumed that’s why every manifold I’ve seen was right above the sump

 

[F i s h y]

Typically manifolds are placed above for convenience. I dont think leaks is first thought in mind. Assuming you have proper pressure and solid plumbing you could place it anywhere. I love the basement sumps on this site they are a great example of filtrstion far away or out of the way. I think you should definitely utilize the space as you are suggesting.