I am in the process of building a new RG reactor for my tank and have a question about how to configure the inlet. I have read somewhere that it's best to have the flow coming down from the top like this:
While other have it going in from the side like this one:
My questions is does it matter? In my mind it seems like the second option would be better in terms of flow because I could eliminate the elbow going into the reactor. I realize that the water would still need to make a 90 degree turn, but it seems like it would be less restrictive to do it in a 2" pipe than a 3/4" elbow. But, I can also see how it would be beneficial to have the flow coming down from the top, this using the entire length of the reactor chamber. What are your thoughts and experiences?
BTW, these are not my pics, I just found them on Google.