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Old 01-27-2011, 06:22 PM   #1
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DIY 30g Sump/Refugium Design

Hi All. I've decided to make my own sump/refugium and I'm looking for advice on what I need to consider. The display is 125g and the P/S is operated outside of the sump. The return pump is outside of the sump as well.

Please tell me if i missed something or need to change something.

TIA!

Tank water comes in from the right, pumps to P/S. There's a small gap at the bottom to let some tank water into the refugium. The water passes through the fuge and then out the bulkhead to the return pump.

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Old 01-27-2011, 06:25 PM   #2
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Here are three good articles on sumps

Everything You Always Wanted to Know About Sumps, Part I by Greg Taylor - Reefkeeping.com

Everything You Always Wanted to Know About Sumps, Part II by Greg Taylor - Reefkeeping.com

Everything You Always Wanted to Know About Sumps, Part III by Greg Taylor - Reefkeeping.com
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Old 01-27-2011, 06:38 PM   #3
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Looks ok but I would have the return from the skimmer going back to the first section,you dont want micro bubbles going into your DT
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Old 01-27-2011, 06:47 PM   #4
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I was thinking that I want only "dirty" water in the first chamber. So either I send the skimmed water to the fuge or create another barrier in the final chamber to combat the micro bubble issue.
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Old 01-27-2011, 07:48 PM   #5
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the skimmer won't catch everything. also, putting a long hose on the skimmer like that might impede it's performance. i would just let it drain right where it is, like david said.
i would also not have a little hole down low for water to enter the refugium. just let it come over the top. stuff is going to fall out/grow out of that hole and enter the intake section.
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Old 01-27-2011, 07:55 PM   #6
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So the skimmer is located outside of the fuge. It's an oversized model that is rated for a 500 gallon tank. The owner that I'm buying from has it setup this way with a long hose and no issues. His fuge is all one tank, no baffles.

The hole in the bottom will be plugged up with a fine mesh to allow water flow, but no critters getting out and into the intake.
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Old 01-27-2011, 08:01 PM   #7
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how will you clean the fine mesh? it will probably clog up pretty quick if not regularly maintained.
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Old 01-27-2011, 08:09 PM   #8
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Good point. I actually am going to revise the plan to move that up to 7.5 Inches from the bottom instead of 2". That way I can have the 6" sand bed and still access the mesh for cleaning.
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Old 01-28-2011, 11:47 AM   #9
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How deep should I make my sand bed?
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Old 01-28-2011, 11:48 AM   #10
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as deep as you want. i like to put a couple inches for the sand dwelling critters, and then cover that with live rock rubble.
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