Quote:
Originally Posted by Witchdoctor
Agreed ... it does not matter in the laest
what matters is the head ... which it the total height the water has to travel in the system. The lower the less head. This is how pumps are rated ...
so for example you may have a pump that can do 4' of head at 400 GPH but with 3' of head that same pump would be able to do 500 GPH ....
so the lower you can keep it in reference to the pump location the better
tube length also goes into it but is not as much of a factor as head pressure.
there are formulas for head and drag so you can figure out your exact flow rate based on the real world application as well as knowing the specifications of the fittings you use.
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SO, theoretically, if you're loop is the total distance of 3 feet, you're flow should be 500GPH, 6 feet, 250GPH. Whatever the case, it matters not as long as you have some sorta flow IMO. Eventually the temperatures even out thru the loop and then its a matter of how well the heat is moved away from you're rad. If you have a restrictive block, you'll want a pump with some torque (head) I suppose. Pump and Head, shouldn't ever be apart.
