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#1
11-23-2008, 05:43 PM
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Sedras have a few problems, most notable the magnet casing swells up and after a couple of years the impeller tends to bind and you have to replace the impeller. In addition Sedras are noisy.
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120 gallon sps/anemones/LPS reef since 2004 Apex controller 8 x 54 watt T5 PowerModule Herbie's silent overflow system Jebao DC 12000 return pump Jecod CP-40 Cross-flow circulation device Mini Bubble King 180 Barr Aquatics calcium reactor Bucket fuge 
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#2
11-23-2008, 07:40 PM
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Seems like the latest king of the needlewheel pump hill is currently the Askoll pump which comes with the new Octopus/MSX Extreme skimmers. It is considered so because it is what a Red Dragon pump on a Bubble King starts out its life as before Klaus adds the custom volute and various titantium bits.
It's a shame that you bring up the question now since C&C Marine of Quebec (who originally designed the new Octo Extreme skimmers before a falling out with Coralvue) was selling turn key Askoll skimmer pumps complete with volute and needlewheel on their website. A shame because they recently went out of business. I know people have been using Eheim 1262s as DIY needlewheel pumps with good success. Here's BeanAnimal's page on a DIY needlewheel with an Oceanrunner pump although now it appears he will be switching to an Eheim: http://www.beananimal.com/projects/6...n-skimmer.aspx If you look on RC's DIY forum there was a massive thread on Hahnmeister's attempts to recreate a Red Dragon from a Hagen Laguna pond pump (which also has the Askoll pump its heart). I'm running a Warner Marine RX200 prototype skimmer right now with a Sedra 9000HO pump. It's very quiet. The volute looks like a custom one and the discharge has been hand ported. Last edited by fkshiu; 11-23-2008 at 07:43 PM.
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