Randy-S Posted December 21, 2006 Share Posted December 21, 2006 I run a PM XL on my reef and my pci70 just went t!ts up on me. i need to replace the pump so I can go buy one or I do have a sequence dart am not using. The problem with the dart is two fold one its not pressure rated, but it does move three times the water then the pci 70 and two the bulkhead feeding the pci70 is smaller then the dart intake so if i did swap them the dart would have a reduce intake feed ingthe pump. Any comments? Randy Quote Link to comment Share on other sites More sharing options...
R2R2 Posted December 21, 2006 Share Posted December 21, 2006 Seems a less than ideal match but the dart is such a great pump, it may tolerate a slight restriction and make up for pressure by volume.R2R2 Quote Link to comment Share on other sites More sharing options...
Guest Mbeef61 Posted December 21, 2006 Share Posted December 21, 2006 i just wouldnt want to run it restricted...maybe you can trade it to someone...or use it in a different way. Quote Link to comment Share on other sites More sharing options...
nu2reef-n Posted December 21, 2006 Share Posted December 21, 2006 You can safely restrict the output on that pump, but you shouldn't restrict the intake. Quote Link to comment Share on other sites More sharing options...
izzypop Posted December 21, 2006 Share Posted December 21, 2006 The Dart can run restricted and uses way less watts that way too. read the last post. I would run the Dart and if you have to throttle it back no biggie. I would somehow make it 1.5" in though for sure. http://www.reefcentral.com/forums/showthread.php?s=&threadid=991012 Quote Link to comment Share on other sites More sharing options...
Randy-S Posted December 22, 2006 Author Share Posted December 22, 2006 I think the back pressure that the beckett would cause would not harm the pump. I am worried that the current bulkhead is one inch put in place for the pci pump and the darts intake is 1.5 or 2 inches. I cannot replace the bulkhead it would be to large of a project. So I wounder how hard the restricted intake is on the pump? Quote Link to comment Share on other sites More sharing options...
WAVES Posted December 22, 2006 Share Posted December 22, 2006 You can restrict them down to 400gph, and as long as the output has a higher restriction than the input it will work great. I ran one with 1" input and 3/4" output after speaking with Chris at Sequence. Its actually less work and easier on the pump because it allows the impeller to spin "freely". Quote Link to comment Share on other sites More sharing options...
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