What I read is that these pumps chatter a bit on start-up, but that the Seio controllers only slow them down considerably instead of totally shutting them off, therefore eliminating that chatter. I don't know, maybe I'm out to lunch! I don't know much at all about the different controllers.
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~Drew
10G Nano * 10G Sump * Deltec MCE 600 Skimmer * JBL Viper 150w MH * Zeovit * Vortech MP40W
Millions long for immortality who do not know what to do with themselves on a rainy Sunday afternoon. ~S. Ertz
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