Unfortunately this means the real gains of parallel don’t happen until you get beyond the useful restriction range of water cooling loops. At the temperatures most PC water-cooling systems operate, pressure changes caused by the expansion and contraction of the water volume will be negligible. Of course there are some other methods like passive cooling or mineral oil, but those are in really small portion. If you want to do this worry free, I'd say just buy two of the same pump like two Swiftech PWM MCP-655's and control them at the same time with a Y-splitter on a dual pump top from … Now poke a second hole - water comes out of both holes. It’s only when you get to more complex loops like SLI and … The higher path will still get flow, but maybe not what you think, and without seperate pumps, the only way you can control flow in the loops is to throttle down on the lower resistance part to try … Parallel thermoelectric water-cooling loop Here I consider the possibility of a relatively simple and inexpensive addition to a regular PC water cooling loop. "The configuration you use depends on your individual cooling system. The advantage of parallel: both devices get cold water disadvantage: higher water flow through each device so better cooling for the first device disadvantage: seccond device in the loop doesn't get cooled well because it gets already hot water from first. Chilled water schematic and condenser water schematic, how to read and understand the engineering drawings with real world examples, Illustrations, animations and video tutorial. Custom Loop Water Cooling PC: In general, there are three methods to cool your PC: air, AIO (all-in-one water cooling), and custom loop water cooling. Due to the flow characteristics of the parallel design, the flow rate along each of the cooling channels may be different, depending on the flow resistance of each individual cooling channel. Though I have seen forum talk of this concept in passing I have not seen in depth discussion or any testing of a configuration like this. You poke a hole in the bottom of it, water starts leaking out. If you want parallel loops, you should make sure each loop has it's own pump. On a very high restriction loop you … The path of the water … Parallel cooling channels are drilled straight through from a supply manifold to a collection manifold. Picture a bottle of water. A less well-known fact however, is that the internal water volume will decrease over time, even in systems with no obvious leaks. Re:Water Cooling: Series vs Parallel Loops 2013/05/13 15:57:01 I have my loop running a parallel bridge for the GPU's Working great! EK actually stated it was a better flow rate, for whatever that is worth. Keep in mind that parallel lines reduce coolant pressure, so results will depend upon the pump and tubing … Parallel circuits. At 1 gpm it takes 250 watts of heat to raise the water in your loop 1C. Path of least resistance will see more flow. Covering chillers, pump sets, AHUs, risers, primary and secondary systems, cooling towers and bypass lines. That's essentially how a parallel loop works. Which is why you often see serial loops in a lot of standard water loops. Multiple pumps work together to pump the liquid so I think running one lower than the other would just mean that one is doing more work. DDC and D5 pumps can achieve 1 gpm of flow through most standard loops, such as a CPU, GPU and two radiators. 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