Cls

[eric.battani]

Looking for some help with a closed loop system on a 30 long. 36in long 12 inches wide.

I already have the tank, its not yet drilled though. Waiting on the bit and bulkheads to come in. I plan on drilling three returns. Two about low to mid tank and the third towards the top. The intake will be located behind the overflow in the corner. I currently have a mag 7 pump to power the return lines. Also each return line will have its own gate valve to regulate flow however I want.
With this be enough flow?

 

[dbg]

this is the mag 7 cls I have on my 90g. Sounds like more than enough flow to me for a 30g. Mine puts some healthy flow in the tank (you can't see in the pic, but the return T's off at a SCWD a bit higher up).

 

[eric.battani]

Do you have any powerheads/wave makers in your tank, or just the closed loop with mag seven pump?

 

[eric.battani]

And how many return ports do you have?

 

[dbg]

Here is the display tank with 4 return ports from when I first set the tank up- the outer two are from the return pump in the sump tank (the return pump in the sump tank T's off to a SCWD, and the SCWD sends to the outer two ports); and the inner two return ports are from the SCWD that T's off of the cls. So, my system utilizes two pumps and two SCWD's, total. I have no other wave makers, and I have found that this set-up supplies plenty of flow to my 90!