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size of drain line for my reef tank (1 Viewer)

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blancoruiz

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Hey guys whats up so im new here and i was woundering what size of drain line or bulkhead to use on my 75 gal reef tank that im working on setting up?
 

Tempset

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Standard "drain" & "return" lines are usually 1" for drain & 3/4" for return.

Of course, the larger the tank volume, the more we lean towards larger hole ratios.

Currently on my 120gal I have 1 & 1/4" drain and 1" return.

However if I had to start from scratch, I would probably go back to the standard 1" drain & 3/4" return(mostly because return pumps are typically 1/2" or 3/4" outlets).
 
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