bkl911 August 23, 2009 Share August 23, 2009 Just curious what size PVC pipe I should use to flow water from my skimmer sump into another sump. Basically I am going to have a dedicated sump for my ASM G5 skimmer, then plumb that into my other sump with a refugium in it then will have a Hammerhead for a return pump out of sump #2. I want to know if 2X 1.5" pipes can potentially flow 3k-4k gph, or should I use 2X 2" pvc pipes? Link to comment Share on other sites More sharing options...
Boret August 23, 2009 Share August 23, 2009 Link to comment Share on other sites More sharing options...
bkl911 August 23, 2009 Author Share August 23, 2009 Thanks, I saw that chart on flex pvc's site, but was not sure if they were showing gravity flow rates from a vertical pipe position. My pipes will be horizontal from one sump to another. So one tank will be about 55g and the other is 60g but they will be plumbed from one end horizontally to the other tank with 2 pipes, so the water will flow from left to right. Hope this is making sense. Link to comment Share on other sites More sharing options...
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