Quote:
Originally posted by airspirit
Judging by strict thermodynamics, you'd want pump>block>rad>res. You want to flush the hot water from the block as fast as possible (high flow) and you want it to cool in the rad as long as possible(slow flow). The only wildcard is the pump. If you have a pump that creates a TON of heat, you may want to swap the pump and rad in order. If you're using a smaller pump, though, you definitely want it before the block.
edit: to answer your last question, with every turn in the system flow, your pressure will be reduced. That's why you want the pump before the block and not the rad, otherwise the rad will kill your flow before it gets to the block.
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Must... remain... calm... he's... only ... a ... noob... it's... not ...his...fault...
1-All pumps add heat to the water. Some pumps add an insignificant amount, some not. Regardless, the coolest part of a rig is the water exiting the rad, and you want your block connected to that.
2-The flow rate is exactly the same in all parts of a rig. The SPEED of the water however, will change according to the tubing size. i.e. 100 gallons per minute, for a 1 foot pipe, versus a 24 foot pipe: is still 100 gallons per minute, but the water speed would be much higher in the small pipe. All that to say that no matter what the block is connected to, the flow rate will be the same in the block, so it doesn't make any difference.