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  #1  
Old 03/25/2007, 06:00 AM
gavij012379 gavij012379 is offline
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Join Date: Sep 2003
Location: Lubbock, Tx
Posts: 103
Has someone done this overflow? Will it overflow my sump?

I was thinking of getting a 25 X 25 cube just like this one with a center overflow. http://archive.reefcentral.com/forum...hreadid=970993

There will be no overflow box just 2 tube with strainer sticking out in the center of the tank for the drain (1 - 1.5" & 1 - 1/2") and 2 pvc loop for the return also in the center. I was going to hook up one drain to the inlet of canister filter to pull more water from the tank as I plan on having a high flow.

I was planning to make the call today to order the tank and now I realize that in case of power failure, my return pumps won't work and all the display area water is going to overflow my sump. I will have check valves in the return lines so that won't be a problem but how can I stop the water coming from the 1.5" drain line. Does anyone see a way around this or do I have to do close loop which is not an option for me or go with the flow and have an overflow box along one of the wall. I wanted this setup so that the tank is viewable from all sides. If I put a pump in the drain line too, will this stop water in case of power failure or will gravity push water through the pump to the sump anyway. Thanks for all your help.
  #2  
Old 03/25/2007, 07:21 AM
Ixthys Ixthys is offline
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Join Date: Jun 2004
Location: Middletown, MD
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Not sure I understand your question. His setup doesn' t have a sump, so if power fails, there is no risk of overflow. His is a closed loop.
  #3  
Old 03/25/2007, 05:13 PM
gavij012379 gavij012379 is offline
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Location: Lubbock, Tx
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yeah that's true. His is closed loop but I want a open loop because IMO you do need filter and skimmer. That's why I have the problem.
  #4  
Old 03/25/2007, 06:20 PM
Hop Hop is offline
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Location: Western Colorado
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You would need to take the drain line up to the desired water height in the tank. Then you have the noise issue and would want a stockman or durso. Plus the return line would need to be up to the desired level so that when power fails, you don't have an empty tank

Might as well build one with a weir in the center
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