Please look at my overflow design

[kelp47]

Hi all. I plan to set up a 75 gal mixed reef as a room divider (sort of). Because of this, I need to have the tank custom built with the overflow on a short side of the tank. I think I have done enough reading now to sketch something for the tank builder, but I'd like for a few of you more experienced reefers to take a look. This is designed for a Herbie overflow with a 1" main drain, 1" emergency drain and 3/4" return. Does this look okay?

[kelp47]

Any thoughts?

[infamous_6969]

Since this will be custom made why not do 2 island overflows in the center. You will get better surface skimming.

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[kelp47]

An island overflow crossed my mind, but I thought it might be difficult to arrange rockwork around. Do you know of any photos of something like this on the forum? I won't rule it out.

[ktg113]

I have a Room divider set up and I have the return piped along the top of the tank to the opposite end that way it blows back to the overflow.

[ktg113]

ImageUploadedByTapatalk1354987969.073590.jpgif you look at the top of the tank you can see the PVC my plan is to have a "wall" from the ceiling to the top of the tank and cover the PVC. I ran one rerun up the back by the over flow and installed a t and ran two returns one for each side I the tank

[SGT_York]

Keep how it is, I would plum the return to the other side of the tank to get better flow.

You will get better return flow by using a 1" return over the 3/4" unless it's a basement sump.

[kelp47]

How about my original overflow design? I just want to have it checked out before submitting it to the aquarium builder, mainly to make sure the layout and spacing between holes and sides looks okay. Unless I go with an island overflow (about to look for example of this), I'll probably just stick with this. I can't run any pipes outside of the aquarium and/or stand because my aquarium will literally be right in the middle of the room--that's why it's "sort-of" a room divider.

[kelp47]

Originally Posted by ktg113

Attachment 213488if you look at the top of the tank you can see the PVC my plan is to have a "wall" from the ceiling to the top of the tank and cover the PVC. I ran one rerun up the back by the over flow and installed a t and ran two returns one for each side I the tank

Although this won't work for me (see my other post) that's a very nice tank!

[ktg113]

Thank you

[kelp47]

Originally Posted by SGT_York

Keep how it is, I would plum the return to the other side of the tank to get better flow.

You will get better return flow by using a 1" return over the 3/4" unless it's a basement sump.

I thought, as a rule, the return should be a step down in size, to prevent flooding. I'm looking to achieve around 4x flow through the sump and will supplement with a power head as necessary (so I guess there will be a little equipment outside the tank).