don duncan Posted July 22, 2009 Share Posted July 22, 2009 what size and brand of external return pump would you suggest for a 225 dual overflow reef tank. Quote Link to comment Share on other sites More sharing options...
+mcallahan Posted July 22, 2009 Share Posted July 22, 2009 Eheim 1262. More expensive, but less heat and less $$ on the bill. Or a Mag 9.5 or better. Cheaper, hotter, more power consumed. Quote Link to comment Share on other sites More sharing options...
cmanning Posted July 22, 2009 Share Posted July 22, 2009 Go w/ Eheim, a bit pricier on the side but.......it's quieter, less wattage and no heat. Quote Link to comment Share on other sites More sharing options...
prof Posted July 22, 2009 Share Posted July 22, 2009 Depends on how much flow you want through the sump. Iwaki, PanWorld, Supreme....all good pumps. I don't like running Mag drives or Ehiems external even though they are rated for it. Quote Link to comment Share on other sites More sharing options...
+Mitch Posted July 22, 2009 Share Posted July 22, 2009 i am planning on purchasing an eheim 1262, so if you decide on this, maybe we can arrange a mini "group buy"... lmk Quote Link to comment Share on other sites More sharing options...
Rjohn Posted July 22, 2009 Share Posted July 22, 2009 Aren't you supposed to turn over your water 6 or 7 times in an hour? More if possible? Quote Link to comment Share on other sites More sharing options...
caferacermike Posted July 22, 2009 Share Posted July 22, 2009 Sequence. The dart is probably to large for your sump set up to be efficient. I believe you already own a large pump for flow via a closed loop, so you are still looking for something in the 500-800GPH range right so that the water has contact time with skimmer, fuge, etc.. The smaller Sequence pumps are capable of being throttled back with a ball valve without an bad effects on the pump wearing out prematurely. Also the pumps slow down when throttled back and use less electricity. Many other brands will burn up or can actually consume more electricity when throttled back. Quote Link to comment Share on other sites More sharing options...
+Mitch Posted July 22, 2009 Share Posted July 22, 2009 dave, i was planning on using the eheim externally, why don't you like them in this configuration? the Iwaki MD55RLT was also recommended to me (90g). sorry for hijacking your thread don! =) Quote Link to comment Share on other sites More sharing options...
caferacermike Posted July 22, 2009 Share Posted July 22, 2009 Aren't you supposed to turn over your water 6 or 7 times in an hour? More if possible? Yes but not with your return pump. Quote Link to comment Share on other sites More sharing options...
don duncan Posted July 22, 2009 Author Share Posted July 22, 2009 Looking for something quiet. I have a gen x but it is loud and this tank is in my bedroom. How many gph? Quote Link to comment Share on other sites More sharing options...
caferacermike Posted July 22, 2009 Share Posted July 22, 2009 dave, i was planning on using the eheim externally, why don't you like them in this configuration? the Iwaki MD55RLT was also recommended to me (90g). sorry for hijacking your thread don! =) I believe it's because the face of them comes off so easily. They are not a sealed unit being driven by a separate pump like your Iwaki, Pan World, Sequence type pumps. If they get bumped it is possible to loosen the face and cause a drip to form unnoticed. Just put it in the sump. The Eheim 1262 is one of the best pumps ever made. Hands down. I own 5 of them and would never consider selling even one. Quote Link to comment Share on other sites More sharing options...
Rjohn Posted July 22, 2009 Share Posted July 22, 2009 Yes but not with your return pump. What else is there? Quote Link to comment Share on other sites More sharing options...
prof Posted July 22, 2009 Share Posted July 22, 2009 Water turnover is always debated. If you have 5+ times turnover in the tank you are greatly cutting down reaction time in your sump. Slow flow in your sump (slower in a refuguim) is a good thing. If you are depending on your return pump to provide flow in the main tank you have to give up the reaction time to move enough water. Hence the existence of closed loops, tunze, koralia, etc. Always research the pump to see if it is pressure rated. You don't want to try to throttle down powerheads or pumps like the mags. Quote Link to comment Share on other sites More sharing options...
caferacermike Posted July 22, 2009 Share Posted July 22, 2009 I should have added that most high end skimmer manufacturers run Eheim 1262 pumps externally on their skimmers. My Euro-Reef has 4x 1262 pumps mounted externally and they do not leak. Quote Link to comment Share on other sites More sharing options...
caferacermike Posted July 22, 2009 Share Posted July 22, 2009 And to add to what Dave said about return pumps, you don't want to much flow through your sump as micro bubbles can easily race through bubble traps clouding your water. Also the noise of water rushing through your sump can be very irritating. Your sump should have a peaceful existence and your fuge should be almost Zen like. Quote Link to comment Share on other sites More sharing options...
prof Posted July 22, 2009 Share Posted July 22, 2009 The ehiem and mag are designed to allow external usage. I just don't trust the flimsy connections. Like Mike said, the plastic faces can break and create slow leaks. Iwaki/Supreme/etc. use PVC hard fittings and have feet to screw them down. Just a little peace of mind for me. Quote Link to comment Share on other sites More sharing options...
caferacermike Posted July 22, 2009 Share Posted July 22, 2009 To add to that text you just sent me..... I can read your mind. Quote Link to comment Share on other sites More sharing options...
Rjohn Posted July 22, 2009 Share Posted July 22, 2009 Water turnover is always debated. If you have 5+ times turnover in the tank you are greatly cutting down reaction time in your sump. Slow flow in your sump (slower in a refuguim) is a good thing. If you are depending on your return pump to provide flow in the main tank you have to give up the reaction time to move enough water. Hence the existence of closed loops, tunze, koralia, etc. Always research the pump to see if it is pressure rated. You don't want to try to throttle down powerheads or pumps like the mags. Prof, do you make housecalls? I need someone to tell me what's wrong with my setup. Well, I know what's wrong with it. It wa setup by someone who didn't know what they were doing - me. What I really need to know is how to fix it. Quote Link to comment Share on other sites More sharing options...
don duncan Posted July 22, 2009 Author Share Posted July 22, 2009 rejacking my thread. I have a full size wave box, and 2 korilla 4s and another pump that is in the back of the rock to blow foward. So I don't think motion is an issue. How many gph pump would you recommend. What brand is quietest. I don't like the idea of an external ehiem pump either. Great pump, just dont trust it externally. Quote Link to comment Share on other sites More sharing options...
mhart032 Posted July 23, 2009 Share Posted July 23, 2009 their is a mag 9.5 and an 18 just posted in the want to sell Quote Link to comment Share on other sites More sharing options...
mhart032 Posted July 23, 2009 Share Posted July 23, 2009 oh cancel thats you selling them duh! lol Quote Link to comment Share on other sites More sharing options...
+mcallahan Posted July 23, 2009 Share Posted July 23, 2009 rejacking my thread. I have a full size wave box, and 2 korilla 4s and another pump that is in the back of the rock to blow foward. So I don't think motion is an issue. How many gph pump would you recommend. What brand is quietest. I don't like the idea of an external ehiem pump either. Great pump, just dont trust it externally. so throw it in your sump. Eheim is my #1 pick. I have a mag 9.5 that I'd let go if you wanted it. Quote Link to comment Share on other sites More sharing options...
+Bmwaaron Posted July 23, 2009 Share Posted July 23, 2009 Just curious why do you want to run an external return pump? What else is running through your return line? Quote Link to comment Share on other sites More sharing options...
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