Question from a Sump Newbie

[Cap'n]

Because the holes in the eheim spray bar will be mounted above the water surface of the reef tank they would essentially serve the same purpose as drilling a hole in the elbow above a return line.

ie: the return line will not be below the water surface so it could not form a back-siphon.

Kind of confused me with the non-powered eheim comment?



Invigor and Richer, thanks a lot for this discussion, really helping a lot to bounce my ideas and plans off a couple experienced folks. Wish I could draw a diagram!