$120 for a fish tank pump, $59 sump pump

[71skylark]

Is there a big disadvantage to using a sump pump from home depot rated at 1250gph against a 600gph eheim pump designed for use on a fish tank? is the sump really noisy or power hungry or something?

[*JEREMY*]

i know our sump pump at work is really loud,its just a regular sump pump ,not industrial or anything so i dont know if they are all that loud but there is no way i would use one if they are

[Christoph]

Yes, they're loud. When ours goes off, we can hear a low rumbling through most of the house. It makes my dad proed, though, 'cuz he installed it to keep the basement from flooding. It probably sucks up power too, which is OK if it runs only if it's really rainy, but for...
Wait a second, what do you need 600 GPH for anyway?

[Arkamedies]

Another thing to remember is that most sump pumps have metal internals, and that could lead to corrosion and deterioration of the cooling system in it's entirety.

The few questions I would need to ask are these.

1. How large a system are you cooling?
reason: The most you would need for even a dual CPU system is the 250 gal. p/hour pond pump. not the fishtank pumps, unless you are using the fluval (s?) pump, similiar to what is used in a saltwater fish tank for the powerheads.

2. Are you going to use sealed cooling or are you going to have a reservior?

reason: If you have a reservior you can go with a smaller pond pump. If you can spare the space (and keep in mind that I have never owned anything but full tower and side-by-side server cases since I dumped my 80286) it would be best to use a 200 gallon per hour pond pump and a gallon of coolant in the reservior.

The 200 gallon per/hr pumps seem to be the quiet step. Not exactly sure why they quiet down, but they do.

Anyway, good luck and please post your findings for us on what you decide to do.
:cool:

[Christoph]

The Ehiem 1250 is rated at 316 GPM and made a very quite humming noise when I ran it in my sink to test it.
What do you need the power youn specified for anyway? Did you just get a little carried away or read the wrong article?