Overflow Plumbing?

[acrouse]

I just got a new 1200 gph overflow box with two 1" drains. The ? is would I be better off running a 2nd 1" pvc drain line to the sump. Or if I wanted to run just one pipe to the sump would I need to run a 2" pvc drain to the handle the 1200 gph flow. I would have at least four 90 degree elbows to plumb it to the sump. I just want it to be able to handle max flow. I looked the other day at options to reduce 2" to 1" pvc, it can be done but takes extra fittings to go to 1 1/2" to do it.

Thanks
Allen

 

[musty baby]

If you want max flow, run two 45s instead of the 90s or just bend some pvc instead. Otherwise, could you give some explanation as to how/what directions/distances you need to run to the sump? That would give a better idea as to what might be best.

 

[acrouse]

http://reefcentral.com/gallery/data/500/118073sump2.jpg
http://reefcentral.com/gallery/data/500/118073sump1.jpg

This is a photo of what I have know. It is a 1" pvc running 24" to the corner then about 5ft to the were it drops in to the sump. I want to keep the clean look of running tight to the wall. On the other side of the wall is the overflow box with a 4" coupler and an elbow

 

[matt the fiddler]

There are a few hazards that you don't need.

, for horizontal runs like that, it is best to oversize your plumbing. get it to 1 1/2 as soon as possible.

2nd, you need the plumbing so it is going downhill, even an inch or two drop per foot sideways will do a lot. long horiz. runs will REALLY REALLY kill your flow rate. you can keep the clean look with that.

90's are bad normally, but even worse when on a horiz run....

i would be surprised if that drains more than 3-400 gph in a normal surface drain scenario once the tank runs and it gums up and traps detritus in it..

on the plus side.. it looks very clean. good craftsmanship!

could you rotate the sump 180, and bring it in on the close side of the tank?

IMHO it is a sump room not the display. astecitics should not come that far above function in a sump room..

I am just trying to prevent you from a flood or more disaster.