Would running two RAD's in a water cooling sytem work?
This is kinda a stupid question but i'm just wondering out load.

im no expert but someone "axed" this question before, the answer is yes, two rad's would work

but how would it work.?

It may buy you a couple degrees.

I would only use a dual setup if I was forced to use small rads due to size constraints ..... like dual BI Micros.

Overall, I would say it is cheaper and more space conscious to get a single rad that will perform.

think of it this way,lets say after passing over your processor,the coolant is say 20 deg. above ambient.
then the rad/fan combo only cools it to 10 above ambient.
if you were to pass the coolant through another rad/fan combo before it returns to the processor,you could scrub more heat from the coolant thereby getting it closer,if not at,ambient temp.
although without any other means(peltier,phase change add-on etc.) the best you can hope for is to get the coolant to ambient temp.
edit: (IMHO. if your coolant isnt reaching ambient temp BEFORE it goes back in to the processor,you have an overheating problem waiting to happen.)
then again,im no W/C pimp.
.02

More copper=more heat transfer. simple as that

Well not quite that simple. There is the issue of back pressure and diminishing returns. Two rads will work better than one up to a point. And you have to have a well matched pump to get the water through them both without dumping a lot of heat back into the system. True for any system really.

As putwig stated. You're generally better off with one large radiator as opposed to two.

Didn't think about getting water through, My pump is 330Gph so I wouldn't have a problem pumping through two BI Micros. I use a quite large heater core with two 92mm fans on each side in push-pull. Works really well. I have yet to find a bigger heater core, it came out of a Ford truck. I don't see why only a few use heater cores?!! Better than any $90 Black Ice.

The Aqua and Hydro Pimps are right on the money.
the best coolant temps, I have to date, run 1-2 degC above ambient. I run 1 radiator that has 2 x 120mm fans on both sides.
It doesn't matter how hot or cold the ambient is, it is right there.
AntiM
Maybe I should say , run an "indicated " 1-2DegC above...

I'm with you Hawk. Heatercores kick ass and cost a fraction of the price of ready-made rads. DIY all the way.

Anime....you got that Aquarius kit right? I wouldn't try running 2 rads with that crappy pump for the reasons AntiM stated above. That might just kill your flowrate to the point of being useless, especially if the second rad will also be another one of those tube-and-fin rads.

True this kit sucks but still I do plan on building a better water cooling unit in the next 3-4 months.
I have another question, Is there a better waterBlock for the Aquarius 2 like a what might work?

Well since the tubing for that thing is only 1/4" your best shot would probably be an Innovatek waterblock, although they are pretty pricey. Koolance also makes a 1/4" block, but I don't know how well this would improve your setup's performance.

Edit: If you plan on upgrading later you could always get a waterblock with 3/8" fittings and get a couple of reducers to make it fit the 1/4" tubing. Then when you upgrade more of your system you'll be ready for the larger sized tubing. Only problem with getting one of these now is that, with that pump and the small tubing, you flowrate won't be very spectacular and I'm uunsure if you will actually gain much performance. Anyway, if you go this way I'd recommend a Maze4....good price/performance ratio. Good luck.

Could the aquarius system handle a heatercore or would that slow the flowrate too much?

Actually running a heatercore may actually increase the flowrate, as long as it isn't a monster. The stock rad in the kit is a tube-and-fin style and as you can tell, the tube bends back and forth 180 degrees each time. This is what kills the flowrate with these rads because sharp turns in a watercooling system = . The only problem I can forsee with upgrading to a heatercore is getting the fittings on there for 1/4" tubing, so go look down at your local Lowe's or Home Depot for 5/8" to 1/4" reducers and 1/2" to 1/4" reducers (I think all heatercores have this size inlet and outlets but measure yours just to be sure) , if not you'll have to order them online. mcmaster.com should carry them.

Good point Anonymous, bigger cavities in a heater core equals more wa-wa out da other end

If your system was setup with something like 5/8" ID radiators and 3/8" Water blocks with a 3/8" Id tube from the rad to the waterblock and 5/8" or 1/2" ID back to the rad would be sweet