Bean Animal bulkhead size ?'s

[dia_cero2002]

I have a DSA pro 100 gallon tank that I'm about to set up. Bought it brand new several years ago before they went out of business. It is plumbed for 2 x 1" bulkheads and 2 x 3/4" bulkheads. I want to do a bean animal setup. My question is how should I plumb it? I know I need to do the main drain on one of the 1" bulkheads, but not sure how to do the rest. I was thinking 1" main drain, 3/4" secondary, 1" emergency drain, and 3/4" return line. Is that the best option or should I do it another way? What are your opinions? Thanks.

 

[Vinny Kreyling]

1 or 2 overflow boxes?

 

[dia_cero2002]

1 or 2 overflow boxes?

Just 1, in the center.

 

[ca1ore]

3/4” main siphon and return; 1” secondary and emergency.

 

[dia_cero2002]

3/4" main siphon and return; 1" secondary and emergency.

What it's the reasoning behind the main drain being 3/4"? I'm not doubting you, just wondering why. I would have thought it would be best for the main drain to be 1". Thanks.

 

[mcgyvr]

I agree that the main siphon would likely be best on the 3/4" as the larger size of the other will help prevent air being sucked down on the partial siphon but I would setup the system so that I could easily swap main and partial siphons once the system is up and running depending on how it reacts..
Its easy enough to just make the top section threaded so you can swap out a full cap for a cap with the hole/tube in it to switch 3/4" and 1" bulkhead functionality. Adapt the 1" to use a 3/4" cap and they can be swapped as needed.