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Old 08-24-2012, 12:14 AM   #1
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OverFlow Box

I'm looking into an overflow box for a 40g breeder but don't know much about them. Is there different kinds...good or bad ones? Drilling the tank is not an option for me.

My main concern is "What if the power goes out?" Will I have a flooded living area?

Also what about return pumps...
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Old 08-24-2012, 12:25 AM   #2
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I'm in the same boat.
I'd like to see what people say.
*tags along*
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Old 08-24-2012, 12:28 AM   #3
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Quote:
Originally Posted by Zactheninja
I'm in the same boat.
I'd like to see what people say.
*tags along*
Yeah I've been doing research but haven't found the answer.
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Old 08-24-2012, 01:06 AM   #4
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If the power goes out, a correctly made hob overflow will not lose its siphon.
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Old 08-24-2012, 01:30 AM   #5
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there are a few different types that i know of. The DIY, the "U" tube setups, and the pump driven setups. I went with the CPR CS90 overflow which is a pump driven overflow and it is awesome IMO. I don't know much about the DIY and "U" tube system other than the "U" tubes tend to lose siphon a lot from what i've heard. I went with the pump setup from the start.

any overflow will of course lose its siphon once the water gets below the overflow intake, this is why precautions have to be taken to not overfill the sump. you need to allow for the extra water from the system to back up in sump without overflowing.

This is the system i got.
CS Overflow - Overview and Installation - YouTube
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Old 08-24-2012, 02:27 AM   #6
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Quote:
Originally Posted by skywhitney
there are a few different types that i know of. The DIY, the "U" tube setups, and the pump driven setups. I went with the CPR CS90 overflow which is a pump driven overflow and it is awesome IMO. I don't know much about the DIY and "U" tube system other than the "U" tubes tend to lose siphon a lot from what i've heard. I went with the pump setup from the start.

any overflow will of course lose its siphon once the water gets below the overflow intake, this is why precautions have to be taken to not overfill the sump. you need to allow for the extra water from the system to back up in sump without overflowing.

This is the system i got.
CS Overflow - Overview and Installation - YouTube
I've seen this video before...seems legit! How quiet is it?
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Old 08-24-2012, 02:37 AM   #7
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it sounds like a HOB filter if not quieter.
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Old 08-24-2012, 03:07 AM   #8
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CPR Is Probly the best overflow boxes out there, but they come with that Best out there price tag... Im in the same boat im lookin at a CPR knock off from Aquatraders. If you have the means Go witht he CPR one but if your poor like me and parting the tank togeather onnickels and dimes, look in to the knock offs Overflow Box
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Old 08-24-2012, 03:14 AM   #9
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How many GPH would I need for a 40g?
How about return pump?
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Old 08-24-2012, 03:20 AM   #10
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you'd need at least 250 gph.

In a 40g you could use the CPR CS50. don't forget ($15 for the aqualifter pump)

Amazon.com: CPR Aquatics CS50 Siphon Overflow: Pet Supplies

a Rio 1400 would probably work as your return pump.

Amazon.com: Rio Plus 1400 Aqua Pump - 420 GPH: Pet Supplies
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