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Originally Posted by stev
Is the DDC loud or not? Seems to be an interesting question from many people here. The DDC from first release has been updated for better results. A new IC is being used, so the noise level on the newer DDC pumps sold should be even quieter. Also, there was a startup issue with a few of the older pumps too.
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Hi Stev, thanks for the info.
I've got an early Mcp350/DDC no rpm. no start-up prob. Modded.
I'm curious, how are the pump characteristics changed with the new IC?
As a tech junky, all info is appreciated!
When leak-testing, the DDC was powered independantly by an AT powersupply.
DDC was sooo quite... the low rpm fan from the PS was louder!!
Keep hoses isolated!!! that's what makes noise from an otherwise near silent pump!.