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Old 03-23-2011, 08:33 AM   #1
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where to drill holes

Ordered my 90 gal tank yesterday and also ordered a few bulkheads and strainers. My question is about where to drill the holes for the overflow bulkheads. Ive read where people say to drill them about 4" down from the top of the tank. Do you then just have the strainer pointing staright into the tank or if you drilled the hole lower you could use and elbow and then a piece of pipe to set the strainer standing upwards at the level you want the water to be at. Im not sure what the best setup would be so anyone who has done this before I would appreciate any info and pics of how you have setup your overflows.


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Old 03-23-2011, 09:01 AM   #2
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Is this for a sump or a closed loop system?

For a sump, drill the holes in the bottom or near the bottom.
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