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Old 08-26-2015, 03:28 PM   #1
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Non Siphon Drain - Straight Down or Angled

I'm running a Glass Holes 700gph overflow and I'm wondering if the drain (non siphon) should be a perfectly vertical drop straight to the sump or if I should put a bit of an angle on the drain line? Which would produce less noise and allow more water flow? I'm planning on about 400gph of flow and the drain is 1.5".


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Old 08-26-2015, 06:24 PM   #2
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Straight into the sump.
Below water level with slots cut into it to release/brake air IMO.
This will help with best flow.

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Old 08-26-2015, 07:41 PM   #3
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I seen a set up at the reef shop they used a S shaped trap to slow the water keeping it from splashing and not stirring up the sump seemed to work nicely , it also had a shut off valve
Fish are like lifesavers
They come in different colors

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Old 08-26-2015, 07:49 PM   #4
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I have the same kit on my 40 and I run it straight down into the sump. Well straight down and then 2 elbows

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led, siphon

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