The pump is no impressive construction – it seems to lack muscle. You can its photo on this page of Zalman’s website. Unfortunately, I can’t show you a photo of my own: the main “tube” of the Reserator is fastened with a thread and a rubber gasket at the bottom, i.e. where the pump is. This is all so tightly drawn up that I couldn’t unscrew this tube from its bottom.
Well, even given the pump is not a very powerful gadget, this is compensated by the CPU water block’s offering little resistance towards the stream of water. All the nozzles and tubes have a rather big section, thus also making it easier to pump water through.
The maximum volume of water the system can take in is 2.5l. If you pour in this amount, water fills Reserator 1 and contacts almost all of its internal surface. The ribs on the outside of the reservoir efficiently dissipate heat in air even without additional blowing: the outside surface area is 1.274 sq. m, according to Zalman.
The cap of the Reserator is fastened on a thread with a rubber gasket. With all its gaskets, the system is not completely hermetic. There’s a small hole in the center of the cap, which helps to avoid pressure changes in the system when it heats up or cools down.
The basic characteristics of Zalman’s Reserator 1 are listed on the cap:
- The total surface area of the Reserator: 1.274 sq. m;
- Weight (without water): 6.5kg;
- Dimensions: 150x150x500mm;
- Material: anodized aluminum;
- Maximum water volume: 2.5l;
- 5W water pump;
- Power supply: 220W/50Hz.
The pump is powered from a 220VAC source; the power cable with an unassumingly-looking switch in the middle comes out of the reservoir.
I think that having made so original a water-cooling system, the Zalman engineers could have invented something more interesting than a banal switch. That’s a trifle, of course, but trifles matter, too.
Now, let’s examine the remaining components of the water-cooling system from Zalman.