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Unread 07/29/2012, 03:26 PM   #1
perverseosmosis
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Join Date: Aug 2008
Posts: 68
Can BeanAnimal/Herbie be made to work with two overflows

Apologies if this question has been done to death. There seems to have been quite a bit of discussion on the topic all these years, but I haven't seen anything which addresses my specific question. Here goes:

I have an Oceanic tank (110) with two overflow compartments, each with drilled 1" and 3/4" holes. By compartment, I mean a box surrounding the two trains, siliconed from the base of the tank to nearly the top.

Allow me some crummy ascii art :)

...[O o] [o O]
....1 2...3 4


I've been reading up on BeanAnimal and Herbie's designs for silent overflows. They both seem better adapted to tanks where all the tank inputs and outputs are in a shared compartment. In my case, the two sets of drilled holes are in separate, sealed compartments.

In a Herbie setup I could make 1 the siphon drain, 2 the secondary/emergency, and 3 the return. The problem with what to do with 4 and how to keep the water in that compartment from going stagnant.

Can I make 4 into a drain and gate valve it's flow as well? Should I connect it to drain (1)?

Does anyone have experience with this setup, or can someone point me to a post where they discuss it? I'd like a little certainty before I go glue up a bunch of expensive valves :)

Thanks!


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Unread 07/29/2012, 03:30 PM   #2
perverseosmosis
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Join Date: Aug 2008
Posts: 68
Oh, just found this.

http://reefcentral.tv/forums/showthread.php?p=20389221

However, I still don't see how you keep the level equalized in the compartments without running the return over the back. (which seems like it should be avoidable in a tank with 4 holes in it!)

I feel like this would be easier if the two overflows were connected.



Last edited by perverseosmosis; 07/29/2012 at 03:50 PM. Reason: more ramblings
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