DIY filtration, Help please!
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Old 05-20-2013, 04:22 AM   #1
Selemontare
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DIY filtration, Help please!




Okay, so I have been researching DIY Sump/Refugiums. My biggest questions are:

What are the pipes called that hang over the back of your tank (instead of drilling holes) and where can I buy them? What other DIY options are available besides drilling?

What is the purpose of the barriers in a sump set up? Is it to just have a more concentrated water flow through filter material?

Does the height of the barriers make a difference? Does the gap underneath the barriers need to be a certain size to prevent flooding of a compartment?

And whats a good way to determine the GPM needed for a sump?

Any/all help is greatly appreciated! I have looked at countless Youtube videos that show you how to build it, but offer no explanation behind the design. And a lot of the videos either banter or have loud children in the background, making it extremely hard for me to concentrate.
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Old 05-20-2013, 07:18 AM   #2
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Maybe the written word would help. Also see the articles cited at the bottom of this page.
http://www.tropicalfishkeeping.com/s...g-sumps-15943/

I used the U tube type HOB overflow but there is also this kind. It terrifies me. U tube type overflow can lose siphon if bubbles collect in that u tube and with PVC you cannot see if that is happening! Many have made these without flooding the house so this plan can work!
http://www.monsterfishkeepers.com/fo...3-diy-overflow

The most beautiful HOB overflow is the MAME, made out of glass and very compact. Here is one DIY version. An airline between the return and siphon if properly placed will constantly pull air out of the siphon eliminating the problem of the other DIY overflow. I don't see it on the first page, hope how tos are somewhere in the thread.
http://www.nano-reef.com/topic/25440...-pvc-overflow/

I don't have any barriers in my sump and if I put them in it would be to force water through all my sponge. Never have a barrier extending to the top of the sump, if there is bypass you don't want water coming over the barrier and out of the tank!

I started by planning 10x tank water volume through the system. That actually makes the sump filter less effective as the bacteria cannot process that much flow but nothing horrible has happened so far. I made sure the drain could process that much flow and made the returns as large as possible so the flow isn't restricted there either. It turned out my toothed overflow couldn't handle that much flow so I broke them out! http://reefcentral.com/ has a number of very useful calculators on the home page.
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Old 05-31-2013, 09:14 PM   #3
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U tube overflows won't flood unless your return pump isnt pumping enough water back into the tank.

Quote:
Originally Posted by Kathyy View Post
Maybe the written word would help. Also see the articles cited at the bottom of this page.
http://www.tropicalfishkeeping.com/s...g-sumps-15943/

I used the U tube type HOB overflow but there is also this kind. It terrifies me. U tube type overflow can lose siphon if bubbles collect in that u tube and with PVC you cannot see if that is happening! Many have made these without flooding the house so this plan can work!
http://www.monsterfishkeepers.com/fo...3-diy-overflow

The most beautiful HOB overflow is the MAME, made out of glass and very compact. Here is one DIY version. An airline between the return and siphon if properly placed will constantly pull air out of the siphon eliminating the problem of the other DIY overflow. I don't see it on the first page, hope how tos are somewhere in the thread.
http://www.nano-reef.com/topic/25440...-pvc-overflow/

I don't have any barriers in my sump and if I put them in it would be to force water through all my sponge. Never have a barrier extending to the top of the sump, if there is bypass you don't want water coming over the barrier and out of the tank!

I started by planning 10x tank water volume through the system. That actually makes the sump filter less effective as the bacteria cannot process that much flow but nothing horrible has happened so far. I made sure the drain could process that much flow and made the returns as large as possible so the flow isn't restricted there either. It turned out my toothed overflow couldn't handle that much flow so I broke them out! http://reefcentral.com/ has a number of very useful calculators on the home page.

Last edited by PunknDestroy; 05-31-2013 at 09:15 PM.. Reason: correction
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Old 05-31-2013, 09:18 PM   #4
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The pipes are the overflow. Usually HOB if not drilled. The barriers regulate the water level. If you properly use baffles it can keep the tank from overflowing in a power outtage. They also allow you to nicely section off the sump for different things. The height of the baffles does make a difference. Generally speaking, you use 3 baffles on the first one and 2 on the last section. This creates a space in the center of the 3 sections that has a higher water level than the other 2 which can promote good aeration.

If you need to know anything else feel free to PM me as I've built countless DIY sumps and refugiums

Quote:
Originally Posted by Selemontare View Post


Okay, so I have been researching DIY Sump/Refugiums. My biggest questions are:

What are the pipes called that hang over the back of your tank (instead of drilling holes) and where can I buy them? What other DIY options are available besides drilling?

What is the purpose of the barriers in a sump set up? Is it to just have a more concentrated water flow through filter material?

Does the height of the barriers make a difference? Does the gap underneath the barriers need to be a certain size to prevent flooding of a compartment?

And whats a good way to determine the GPM needed for a sump?

Any/all help is greatly appreciated! I have looked at countless Youtube videos that show you how to build it, but offer no explanation behind the design. And a lot of the videos either banter or have loud children in the background, making it extremely hard for me to concentrate.
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Old 06-01-2013, 03:14 AM   #5
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The baffles in the sump can also eliminate air bubbles from getting into your return pump if your overflow pipe ends above the sump water level
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Old 06-02-2013, 08:06 PM   #6
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Check out these videos. The first one is how to build it, and the second is how it works. Cheap, simple, effective, and if done right, not an eye sore.
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Old 06-03-2013, 01:44 AM   #7
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Here's an overflow I like

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