thats not a dual loop barf... lol..
if 1 pumps fails... you still got water though all your loops.
dual loop means if the pump fails, the loop fails, that loop is knocked out.
Your sharing a res, which means equalibirum will be atttained on both sides sharing that res..
its a single loop unless you had separate res's.
Example...
I am running 3 independant loops on 4 radiators and 6 pumps.
That means each loop has a dual pump option, its own res, and radiator. Completely separate from each other, doesnt mix at all.
While i understand gabes' theory in this approach, single loop is ideal for starters.
This methodology also assumes your NEVER going to get both cpu and gpu under constant load for long term which is true 85% of the time.
(15% is if you do distributing computing... or Folding / WCG ) Then good luck with a single loop.
While u get advance in our hobby a dual loop is the route, because of the more fine control you get, and when setup properly, you get better efficiency in your loops for lower deltas.
whatever will make you the shortest loop.
This will always apply... the shortest loop always = WIN.
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