CL on a 120 q's

[deathmatch782]

I recently purchased a used 120 gallon tank made by http://midwestcustomaquariums.com

With the tanks design, there are 2 drains and one return that splits onto either side.
I have a spare Velocity T3 pump laying around and am thinking about doing a closed loop with eductors/phenductors.

The input and output on the pump are 3/4", so what sizes would I use for the input drain and the eductors?
And is it possible to put the input drain in my overflow compartment?

[Geoff]

since it is acrylic i say grab yourself a hole saw and start putting some holes in it.

i do not recommend using an overflow as an inlet for a CL unless you know that overflow can handle it. my overflow is 6' long so i know it can handle the extra 2000gph i put through it for the CLS's. most normal overflows are only rated to 1000gph.

that T3 pump is perfect for any kind of CLS you put on the tank. adding a couple of 3/8" eductors will just make it that much better! since the T3 really is a pressure rated pump you can just use 3/4" pipe for outlet. if you can go with 1" for the inlet that would be better, but not that big of a deal if not.

G~