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  #182  
Old 12/14/2005, 08:15 PM
Glimmerman911 Glimmerman911 is offline
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Join Date: Sep 2005
Location: Edmonton, Alberta, Canada
Posts: 231
I wouldn't make the return from the sump over the top if you have the chance to get a hole drilled.

Main advantage is the amount of water you can put through a single 1.5" bulkhead vs. a 1.5" bulkhead in an overflow box. The amount of water for the bulkhead will be much more limited. Couple other advantages are that you can do something like a durso standpipe or equivilent to reduce noise of the water falling, you pull off the surface of the water (strainers can too though), and they can be a little safer for things not getting sucked against the strainer and dieing and clogging it up, with an overflow you have a lot more surface area to diffuse the flow, but that is only important if you are pushing a lot of flow, which you won't be if you are using a closed loop in conjunction with the strainers.

There might be other advantages that I do not know about.
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