All,

I'm starting to get a bit concerned with the DDC+ failures that I'm seeing at different forums, as I understand it the % of failures is very low but it still concerns me when I think about it. I work away from the house quite a bit and I would hate to come home to a fried system due to pump failure.

I'm getting ready to build a dual loop with 2 MCP355's w/ Petra's Tops. Would the increased heatdump be of any concern if I ran 2 additional pumps on each loop in series for safety? I think it very unlikely that both DDC's would crap out at one time.

What is you're opinion XS, 2 pumps on each loop in series or stay with 1 pump per loop?