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#1
07/18/2007, 12:44 PM
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Closed Loop Help
Can anyone suggest a good QUIET pump that would produce somewhere near 1000 gph for a closed loop? How do you you make the intake line of the CL on an undrilled tank? I was thinking about taking 1" pvc pipe cap it and drill a million holes in it. Will this work and not suck fish up against it? Thanks for any help.
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#2
07/18/2007, 12:59 PM
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I just installed a Mag-drive 9.5 yesterday on my CL and it is quieter than I was expecting (you can barely hear it over the overflow). When there are bubbles caught in it, it gets pretty loud.
My intake is just like how you described your idea. The longer and more holes you have, the more that the suction is spread out, so most likely, a fish will not get sucked up. |
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#5
07/19/2007, 12:12 PM
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All pumps will heat your water. It's hard to determine how much, since even for a single model that will vary depending on the load that's placed on it.
Most pump manufacturers publish the max. watts their pump will draw. Use that as a general guideline to determine the amount of energy used by a pump, which can help you compare pumps of similar flow ratings for efficiency and heat - for a given flow rating, the higher the wattage, the more heat it will likely create. |
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#6
07/19/2007, 12:27 PM
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Quote:
As stated, all pumps add some degree of heat to the water and mag pumps are known to be heat adders that can possibly leak if plumbed externally. Look into an Eheim 1262(900gph) for a super quiet pump that can be used either externallly or submersed. Some use the Gen-X brand pumps for CL also, cheap and does the job but can get noisey over time. Lot's of choices here, depends on how much you want to spend. HTH Cheers! |
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#7
07/19/2007, 12:52 PM
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i would go with eheim 1262 as well, it actually pumps more than what it is rated at because it is rated for 50hz vs 60hz electric here in the US. Extremely quiet, low wattage/low heat, built to last decades not years, better under head pressure compared to mags, can be run internal or external. Mags are not meant to be run external btw.
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#8
07/19/2007, 01:40 PM
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Here is how I have mine setup.
   Intake is in the center. I changed the QO 4000 to the Pan World 50PX-X. Though the QO produced great flow for less energy, I found that because it was external, it heated up. This did not increase the water temp significantly but caused the pump impeller to gum up with calcium. I would have to disassemble it every week as it would either stop or not start back up when shut off. I have a QO 3000 as a return pump and it works flawlessly. The Pan World 50PX-X has been running for four months now with no issues. More pictures if you click the red house. HTH Jay
__________________
"Opportunity is missed by most people because it is dressed in overalls and looks like work" - Thomas Alva Edison |
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#9
07/19/2007, 04:21 PM
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I want to set up my CL like stereomandan set up his. I am not sure if this is against the rules but here is a link to his diagram.
http://archive.reefcentral.com/forum...5&pagenumber=2 It is about 3/4 down the page. I am wondering how Eheim pumps compair to Quiet One pumps. I have had experience with the QO pumps and they are acceptable on noise. Will the Eheim 1262 be enough to power my desired system. |
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#11
07/20/2007, 09:39 AM
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So are closed loops designed to give water movement without having to add amy water pumps?
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"if I asked the general public what they wanted they would have said they wanted a faster horse" Henry Ford |
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#12
07/20/2007, 10:00 AM
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rafa, closed loops are used to give more water movement without having to put pumps (powerheads) IN the tank. You get to use one large pump, located outside the tank, to create lots of water movement without filling the tank up with hot, ugly powerheads.
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great that is what I was thinking
Linear Mode
