Posted by:
mayo
at Tue May 15 19:42:49 2007 [ Report Abuse ] [ Email Message ] [ Show All Posts by mayo ]
Check for cracks in your o-ring. I have used Hagen fluvals on over a dozen tanks over the past 15 years and totally love them. Though I would recommend using two of the 300 models and not mess with the 400 series. I have never owned a 400 series because everyone I know who has had one had problems. I have used the 100, 200, and 300 series with no problems for a long, long time.
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