Whats the best intake for a sump?

[KOFP]

From an internal overflow, a hang-on overflow, to a 90 degree elbow (a pvc elbow with a strainer)...which would you prefer as an intake to your sump?

 

-KOFP

[SPS20]

Generally, an internal overflow is best. If you can swing a rear coast-to-coast overflow, that is ideal, or check out what this guy is doing:

 

http://www.nano-reef.com/forums/index.php?...p;#entry1410449

 

Its a pretty neat idea, and would do a really good job of surface skimming while having almost no footprint in the tank. My next build is going to have this kind of overflow.

[HecticDialectics]

actually, imo... a coast to coast is not ideal if you are going for trying to surface skim as much as possible. You get much more surface skimming area if you come in from each side an inch or two and have those 2 extra 3-4 inch edges. It gives you a net 4-6 inches extra surface area to skim.

 

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versus

 

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[Uhuru]

like sps20 said look at how I did mine you get almost coast to coast not only in the front but also in the back, just like at how thin the sheet of water is that = maximum surface area:

 

[HecticDialectics]

like sps20 said look at how I did mine you get almost coast to coast not only in the front but also in the back, just like at how thin the sheet of water is that = maximum surface area:

 

Serves me right for not clicking that link first. Clever... definitely a crapload extra surface area.