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Old 12-23-2009, 04:10 AM   #61 (permalink)
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Default Re: Needle wheel pump

reefshops are the best bet, and I think orlando has some? I took a look at the eheims, they dont sound bad but the price range seems close to the bubble blaster. I'm going to keep some pump choices in the back of my head for when I redo my 75G
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Old 12-23-2009, 03:06 PM   #62 (permalink)
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Default Re: Needle wheel pump

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Originally Posted by ashappard View Post
reefshops are the best bet, and I think orlando has some? I took a look at the eheims, they dont sound bad but the price range seems close to the bubble blaster. I'm going to keep some pump choices in the back of my head for when I redo my 75G
Any links to some on line?
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Old 12-26-2009, 12:01 AM   #63 (permalink)
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Default Re: Needle wheel pump

I personally cannot see how using a needle wheel pump could be more effective or efficient than using a reactor for the purpose of dissolving co2 gas into water. A properly designed and functioning co2 reactor will operate at 100% efficiency because no co2 gas is being lost into the atmosphere in the form of a co2 bubble popping at waters surface. The only real issues with a co2 reactor would be flow reduction, and the reaction time needed to dissolve co2 into water. But that can be made up for by determining proper on/off timing in relation to the lighting period. Keep in mind that if it's required to turn on co2 sooner using a reactor in order to have the ppm at proper levels by lights on, then it also means that co2 injection can be turned off sooner before lights out. No waste of gas. Just a timing issue. Also, for people with a low tolerance for noise, a co2 reactor wrapped in a bath towel is dead silent.

Someone with a moderate+ physics background please correct me if I'm wrong.
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Old 12-26-2009, 04:24 AM   #64 (permalink)
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Default Re: Needle wheel pump

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Originally Posted by RedDelPaPa View Post
I personally cannot see how using a needle wheel pump could be more effective or efficient than using a reactor for the purpose of dissolving co2 gas into water.
yeah, it seems counterintuitive at first - but try it and you may be surprised.
I don't think its been established that totally dissolved CO2 is any better (or even as good as) microbubbles entering the plant beds. I ran reactors for many years. Done with them now. I used mazzei injection for a while, its very nice but not so easy to install and tune. I like needlewheel injection of CO2 because its repeatable, consistent, easy to set up and high performing. I'm actually using less gas now.

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Any links to some on line?
honestly, I just use google when I'm looking for parts and rarely keep links. Google knows all.
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Old 12-27-2009, 05:58 PM   #65 (permalink)
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Default Re: Needle wheel pump

PremiumAquatics.com has the Eheim 1103 needle wheel pump at a clearance price of $129.99. They ordered too many. Adjustable flow from 211 gph to 713 gph.

** Included 4 suction feet Connection on pressure side with G 1 Connection on suction side with G 1 WITHOUT diffuser and installation material

http://www.premiumaquatics.com/Merch...Code=Clearance
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Old 12-28-2009, 07:53 AM   #66 (permalink)
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Default Re: Needle wheel pump

I've been using GenX 1500 pumps and they work great. Much cheaper too. It does require some DIY work to inject the CO2, but well worth it.

http://www.premiumaquatics.com/Merch...&Store_Code=PA

Here's a pic of it installed.
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Old 01-11-2010, 05:31 PM   #67 (permalink)
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Default Re: Needle wheel pump

Quote:
Originally Posted by Left C View Post
PremiumAquatics.com has the Eheim 1103 needle wheel pump at a clearance price of $129.99. They ordered too many. Adjustable flow from 211 gph to 713 gph.
Are they simple to set up, Left C?
If so, I'm sold. Are you on commission?
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