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#12
01-28-2009, 04:08 PM
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Most AC voltage powerheads/pumps do not like wavemakers, i.e. being turned on/off regularly. They tend to run in either direction depending on where the impeller stopped last time it was turned off. That's why many newer pumps, including Koralia, VorTech are being produced as DC voltage pumps. That and the fact that 12-24 VDC is much safer than 115 VAC in or near your tank.
So, careful with your choice of pump if you intend to run it using a wavemaker.
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Mike 77g sumpless SW DIY 10 watt multi-chip LED build  http://www.canreef.com/vbulletin/showthread.php?t=82206
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