is 1000gph sufficent?

[theshadow27]

i have a 1000 gph pond pump and i was wondering if i could use it for water cooling

it does have 1/2" fittings, and it runs off 120vac

 

[The_Dark_Hacker]

well i dont know why you are posting here BUT the 2 things you have to know are what the max head is and how much heat it dumps into the water. if it dumps to much heat into the water the high flow would be pointless. if the max head is like 3 feet then you would get no flow for your system

 

[Grizzy]

i have a 1000 gph pond pump and i was wondering if i could use it for water cooling

it does have 1/2" fittings, and it runs off 120vac

LOL 1000gph is total overkill - My pump is 160gph and it's working OK

As TDH said, 1000gph is also useless for watercooling if it doesn't have a decent head

 

[stumpy]

You need to find something with at least 3000 GPH and 50 feet of head.





Most watercooling pumps are 150-350 gph with about 6-10 feet of head , you should be fine as long as it has a decent head

 

[MikeP]

Inline pumps dump very little heat into the water. Read overclockers.com essay on "water cooling myths exposed" to see the data. This is an exerpt from their essay:

Assuming the pump dumps about 50 watts of heat into the water and the flow rate is 1 gallon/minute (gpm - very reasonable assumptions):

Water has a thermal capacity of 4186J/Kg-C at 22ºC and a density of about 1g/mL

With a flow rate of 1 gpm, that's ~3.75 liters/minute (lpm).

3.75 lpm / 60 seconds= 0.0625 liters or kilograms through the waterblocks per second.

4186 * 0.0625 = 261.625 W/C

So that's 1ºC warmer for every 261 watts; but only 50 watts of heat are present, so:

50 / 261.625 = 0.19ºC

Ergo there is a 0.19ºC difference in water temperature between the inlet and outlet of the pump. This does not mean the water is only 0.19ºC warmer than air - that is an entirely different calculation.

And that's with 50 watts. If you're running a smaller pump, such as the D4, you're looking at about 15 watts.


Go to Overclockers.com to read the full essay on this and other myths.

 

[mrgstiffler]

As people have posted before, good head is important... heh heh:-P

 

[thewhiteguy]

If you put a restrictive block on that, make sure you use really good hose clamps and get them VERY tight, or you'll likely blow a connection. That's a powerful pump for watercooling.

 

[Turbokeu]

If you put a restrictive block on that, make sure you use really good hose clamps and get them VERY tight, or you'll likely blow a connection. That's a powerful pump for watercooling.

This is another water cooling myth...
It's not the flowrate of a pump that will blow a connection, but the head (or pressure).
You can have a 10000GPH pump, if it has only a 10feet head it will blow nothing...

CD

 

[weapon--]

This is another water cooling myth...
It's not the flowrate of a pump that will blow a connection, but the head (or pressure).
You can have a 10000GPH pump, if it has only a 10feet head it will blow nothing...

CD

10 feet of head and nothin gets blown? there are major conflicts in that sentence... *rimshot please*

would 1000gph be bad? as stated previously, it's hard to say without looking at the performance curve of the particular pump. My pump runs 1140gph at 0' & still moves something in the area of 600gph at 9'. It's an isolated wet rotor so the heat dump isn't an issue.

anyway, if your rad is up to the task, don't worry about heat dumping unless that pump was designed to heat the pond in addition to pumping water into it.

 

[thewhiteguy]

This is another water cooling myth...
It's not the flowrate of a pump that will blow a connection, but the head (or pressure).
You can have a 10000GPH pump, if it has only a 10feet head it will blow nothing...

Of course, I assumed this pump's heat is quite high simply because you can't obtain that much flow rate without it being much higher than any of the pumps normally used for water cooling.

 

[Turbokeu]

10 feet of head and nothin gets blown? there are major conflicts in that sentence... *rimshot please*

A good WC pump (MCP600/AquaXtreme 50Z, DD4/MCP650, Iwaki) is rated for 10+ feets of head, and nothing gets blown even without clamps...

CD

 

[weapon--]

A good WC pump (MCP600/AquaXtreme 50Z, DD4/MCP650, Iwaki) is rated for 10+ feets of head, and nothing gets blown even without clamps...

CD

lol...I was just having a little fun with the head/blown word usage.

 

[Turbokeu]

Of course, I assumed this pump's heat is quite high simply because you can't obtain that much flow rate without it being much higher than any of the pumps normally used for water cooling.

Not really, most big pumps (ex. Eheim 1260 (670GPH), Sicce Suprema (980GPH), Sicce Mega Plus (1490GPH)) have only a max head of 8 to 11 feet, but have big (3/4" or 1") in- and outlets and higher power wattages.

CD

 

[theshadow27]

it says on the pump "for use up to 15 feet" what does this meen?

i think i will try it out when my WC stuff gets here before i put it in my computer. i have hose clamps (like the type on cars) for it alrready.

also- - it was desigend to be submerged... does that meen that i have to put it in a tank?

 

[Turbokeu]

it says on the pump "for use up to 15 feet" what does this meen?

i think i will try it out when my WC stuff gets here before i put it in my computer. i have hose clamps (like the type on cars) for it alrready.

also- - it was desigend to be submerged...

Means max head is 15 feet...

 

[astolpho]

A submersible pump usually means it must be submerged, they get very hot out of the water, IMHO not a good option for watercooling because it must sit in your water, it has more constant contact and will warm your water significantly more than an inline pump that has limited contact with the water.