Originally Posted by RDKing2
I don't understand all the resistance to this? With all the air bled out of it the reservoir is no different than a larger tube. As far an increase or decrease in water temps I would bet it would be almost unmeasurable one way or the other. Adding resistance to the loop, no more than the fittings add to connect it. Flow rate will slow down in the res but increase again as it leaves. Will be fine. I have two in my system granted I have two pumps but the second res is basically just for looks. I like the led (frozenq warp res) The primary bay res I originally purchased for the built in visual flow indicator. Is it needed? NO. But he just likes it and I for one believe there will be no problems.
I have no problems with him wanting to do it, I am only trying to help him achieve what he wants. There are certain things I wouldn't do and I am telling him so. That is the point of him coming on here and asking about his setup. He wants outside advice. He doesn't have to listen to it. I am not insulting the OP nor anyone else. If I came off rude to you or anyone else, I apologize. I have a bunch of kidney stones and pain pills in me thus my wording may not have been the best apparently.
While his goal is cosmetic, he also stated some desires about no loss of flow rate/performance. I'm only trying to allow him to achieve that. Unfortunately there is no easy way to calculate it since it is sealed with some air chambers, but the rules for an open system still hold some validity if there are sizable amounts of air in his system. I cannot tell him what this amount of air is, as there is no easy way to calculate it. I am only making the OP aware that these rules are not in his favor with his setup how I am interpreting it.
Am I being conservative in my precautions, yes. I'd rather be wrong and have him set up a system that works because of it than to be right, not say anything, and now he has issues. Some posters here have more knowledge than about some things than others. I have taken fluid mechanics and pipe design/analysis. I am only trying to share my knowledge to benefit the OP. Nobody likes buying new toys that do not work out as expected. I am trying to help him get an expected outcome within the realm of my knowledge.
I told him to fill the reservoir if he doesn't want to have issues. You just said he needs to do exactly that as well for it to work, so what's the problem there? We agree. I just gave him my opinion of the easiest layout to bleed.
He also stated he didn't want to lose flow. To me, not wanting to lose flow means exactly that. Going from 1 gpm to 0.8 gpm may not be what he wants. It may make nearly zero effect on temps, but it might. I don't know how his blocks and rad reacts with flow changes. Do you? Most react just fine, others can lose a small amount of performance. He sounds like he doesn't want to lose performance. You agree as well that he will not gain any advantage temperature wise, and again, this is what I said as well. So where is the problem. We are agreeing so far on everything.
You say you believe he will have no problems because you have two reservoirs, you also have two pumps. That is what you need to have zero issues with two reservoirs. He doesn't have that and wants the pump in between them. Why don't you turn off the second pump and let the OP know how it performs. You can do that test in no time at all. For me to give him a valid answer would take a week as it would require building/running a CFD simulation to do the math. Since I do not have that kind of time, I would rather be conservative in my cautions than just letting him wind up wasting his money on something that doesn't work if the conservative answer was the correct one.
So why don't you spend a few minutes with one pump unplugged, you'll give him a much more valid answer than my conservative extrapolations of the energy equation to his system or your guesswork based on your system with two pumps fed by two reservoirs. That is what we are hear for, to help each other out.