PUMPS
are needed to push the water through the system and there are several brands and models to choose from to suit your needs . to decide which is best for you is a PERSONAL CHOICE YOU MAKE based usualy on case size and your budget. there are 2 basic ways for a pump to take in water. SUBMERSIBLE or INLINE. submersible pumps are put inside a resevior and suck the water directly from its surroundings. the problem with this is that the pump itself generates heat that is added to your cooling system . the benifit is that you usualy have a silent or near silent pump in this configuration. Inline is much more common . Most of the pumps listed are made to do both jobs but some are inline only.
some examples of pumps people use are :
EHIEM - known for being dependable for many years .
HyDRO - a good pump that is newer than many other brands so it doesnt have have as much support by the people because its relitivly new on the water cooling scene .
Danner MAG - another good pump .
IWAKI - these are very expencive but they are top of the line . Most people will not use these because they cost a lot but those that do can tell you that they are the best IWAKI PUMP P/Q CHART!!!
VIA AQUA: An inexpensive, yet dependable pump. Often considered noisy unless you follow the 'quiet your Via Aqua pump' guide
http://www.wc101.com/guides/ViaAqua/
you may ask IS THIS PUMP BETTER THAN X BRAND
the best thing to remember is that Max Head is more important than flow. there is a huge misconception that flow is the best way to measure a pumps value. to illistrate...
imagine you are on a highway in a honda accord doing 120 miles per hour and you hit the brakes . your stopping distance will be roughly 500 yards or less .NOW imagine you are in a 2 trailer big rig doing 120mph . yes going the same speed. if you try and stop it may take you as much as 3000 yards due to the weight and force of the truck right?. well water is the same way except you dont want to stop. max head pressure is like rating how big a vehicle you are driving and flow is like measuring the speed limit of the road. so a big rig pump like an iwaki r20 that travels at only 65mph will have more force than honda accord like hydro l20 pump traveling at 85mph.
sure hope you understand all that lol .
for more information on pumps look at the The P/Q Thread listed here:
http://forums.procooling.com/vbb/sh...=&threadid=5068
http://phaestus.procooling.com/pqcurves.jpg