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02/16/2017, 08:04 PM | #1 |
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which pump
I am thinking about replacing my Dolphin Amp Master 6250 return pump and was wondering which pump would be best? My fish room is about 25ft away from my tank. My return line is 1.5" all the way to the tank, then t'd off and reduced to two 1" outputs into the tank.
Thanks in advance.
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Steve Am I really doing all of this for a fish tank?????? Current Tank Info: 360g Envision Acrylic Tank, Closed Loops, Vectra L1's, MP40QD's, 400w Radiums, Regal 300ext, Dastaco Ext3 CaRx, Controlled by GHL Profilux |
02/17/2017, 09:59 AM | #2 |
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Definitely the RD3 230.. It would be good to figure out head loss including friction loss but the RD3 230 is about 5600GPH at a 6' head. My guess (given the length of the run and assuming this isn't a basement setup) is that you'd never need to exceed 160-175 watts based on the display size. The RD3 230 has a 1.5 inch output but if there was a way to up-size the plumbing between the pump and the display to 2", that would reduce friction loss substantially over the long run that you have.
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Director Customer Support Royal Exclusiv USA For All Royal Exclusiv & Bubble King questions please refer to our Sponsor forum: http://www.reefcentral.com/forums/fo...play.php?f=745 Current Tank Info: 480G display mixed reef, 90G sump, 90G refugium, 60G display refugium. Check out my build thread: http://www.reefcentral.com/forums/showthread.php?t=1783476 |
02/17/2017, 10:10 AM | #3 | |
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Quote:
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Steve Am I really doing all of this for a fish tank?????? Current Tank Info: 360g Envision Acrylic Tank, Closed Loops, Vectra L1's, MP40QD's, 400w Radiums, Regal 300ext, Dastaco Ext3 CaRx, Controlled by GHL Profilux |
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02/17/2017, 03:56 PM | #4 | |
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I have two of the 230's on my system and have been running them for nearly 2 years now. They replaced Reeflo Superdart Golds and the RD3's are much more powerful and silent. At a setting of 150 watts, they produce the same flow as the Superdart Golds which drew 184 watts. For me, it's been a great upgrade and I truly love these pumps. They are comparable to the Hammerheads at typical head pressures. In fact, since the RD3 230's peak at around 6300 GPH, they should be comparable to the Dolphin you are looking to replace and use about half the power (230w vs 460w) at full power. I don't think you'd even need to run this pump anywhere near full power though. The biggest difference will be that the Dolphin does a bit better with higher head pressures.
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Director Customer Support Royal Exclusiv USA For All Royal Exclusiv & Bubble King questions please refer to our Sponsor forum: http://www.reefcentral.com/forums/fo...play.php?f=745 Current Tank Info: 480G display mixed reef, 90G sump, 90G refugium, 60G display refugium. Check out my build thread: http://www.reefcentral.com/forums/showthread.php?t=1783476 |
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02/17/2017, 04:36 PM | #5 |
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i just put the watt meter on my dolphin pump so see how much its really pulling.
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Steve Am I really doing all of this for a fish tank?????? Current Tank Info: 360g Envision Acrylic Tank, Closed Loops, Vectra L1's, MP40QD's, 400w Radiums, Regal 300ext, Dastaco Ext3 CaRx, Controlled by GHL Profilux |
02/17/2017, 07:19 PM | #6 | |
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Director Customer Support Royal Exclusiv USA For All Royal Exclusiv & Bubble King questions please refer to our Sponsor forum: http://www.reefcentral.com/forums/fo...play.php?f=745 Current Tank Info: 480G display mixed reef, 90G sump, 90G refugium, 60G display refugium. Check out my build thread: http://www.reefcentral.com/forums/showthread.php?t=1783476 |
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02/17/2017, 08:35 PM | #7 |
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It's pulling 350w. I never understood how more head pressure reduces draw. I would think the more head pressure the harder the pump needs to work. So with the RD3 I can control it by the wattage?
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Steve Am I really doing all of this for a fish tank?????? Current Tank Info: 360g Envision Acrylic Tank, Closed Loops, Vectra L1's, MP40QD's, 400w Radiums, Regal 300ext, Dastaco Ext3 CaRx, Controlled by GHL Profilux |
02/17/2017, 09:07 PM | #8 | |
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As for how or why increased head pressure reduces power consumption, I think (and could be wrong) that the increased head reduces flow and forces the motor to run at a lower RPM. The end result is that the motor in theory would require less current due to the lower rotational speeds.
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Director Customer Support Royal Exclusiv USA For All Royal Exclusiv & Bubble King questions please refer to our Sponsor forum: http://www.reefcentral.com/forums/fo...play.php?f=745 Current Tank Info: 480G display mixed reef, 90G sump, 90G refugium, 60G display refugium. Check out my build thread: http://www.reefcentral.com/forums/showthread.php?t=1783476 |
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02/20/2017, 12:26 PM | #9 |
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Scott, instead of a new thread ill ask here. I am considering replacing my goby gold return pump. 1.5in inlet and outlet. I have it throttled back about 30% and feeding a manifold. which return pump would you recommend?
Thanks corey |
02/20/2017, 01:58 PM | #10 | |
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Director Customer Support Royal Exclusiv USA For All Royal Exclusiv & Bubble King questions please refer to our Sponsor forum: http://www.reefcentral.com/forums/fo...play.php?f=745 Current Tank Info: 480G display mixed reef, 90G sump, 90G refugium, 60G display refugium. Check out my build thread: http://www.reefcentral.com/forums/showthread.php?t=1783476 |
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