Looking to drive and come home with HO pump today!

[iSeven]

Hi, I'm from SW Chicago area of IL, 90 miles out so I'm in farmland country. Closest PC major store is CompUSA in Aurora which is 45 minutes away. There is a petsmart nearby that might have the eheim pumps, but expensive there.I have a Koolance CPU-350AC high-restriction block and my project involves chilled water and insulated board. I want to finish tonight. Noise, no concern. I just want pump power to push to the CPU (2600K). My supply is a ground-well, my return: water to the well. I am parallel charcoal filtering the supply until the loop is final and closed with a dedicated chiller I'm building so tarnish is, a concern would you still say yes? The is just a waterchill-my-cpu-fast project today really open to fast implements just to not sacrifice temps but have the pump today.

Options? Should I just grab the eheim 1260 and say screw it, save $40 in gas and pay $196+tax at petsmart (not sure they pricematch), or drive and buy a better pump? I'm using 1/2" line, the eheims (1260s) obviously are not made for this, they want 1" feed and 3/4" out. That plays into the matter as then I need brass coupler adapters from the hardware store, that restrict flow and specs but those parts are cheap.

I was told DC pumps are better because you can overdrive them where AC you are obviously 60Hz limited to motor speed. Any quick help would be extremely vital and appreciated since I'm on lunch and then off in 2 hours. It was a spur of the moment thing because I started reading about powerful aquarium pumps. If you know stores in northern IL and think I should go get XX model of pump, please announce your input and I'll likely hit the road quick. Basically if I could get this pump under $170 today I would be extremely happy and $200 is my max which I think is even extreme for a freaking pump! Thanks guys

[musicfan]

Sorry did not see this until this afternoon. If you can explain your needs (more about the restriction in your loop for example), I can help you find pumps. I don't understand all the special needs of sub-ambient cooling.

But if you have high restriction then you probably want to use pump(s) in series until you get adequate flow around 1 gpm. Do you need an AC pump or can you use DC?

DC pumps can be over-driven to some degree but it's not long before heat-dump will overcome the merits of that (see the information on the Koolance 24 volt DC pumps - the "strong" series).

Over-volting DC pumps has not caught on even with the proper pump and converter. Martinm210 has done testing at his site on stacking pumps. It's probably better to get one or several MCP655's or Laing OEM (like Alphacool) if noise is no concern. Otherwise get the MCP 35x, which has PWM so adds low noise. You can get significant head pressure at 12V DC. The Swiftech website has specs on the 655. Two 35x in series with a special double top supply high head pressure is $190 plus shipping and is popular on very restrictive systems or extreme systems (many components).

I think you can do this online if you still wish to talk pumps later. Good luck.