View Full Version : powerfull enough?
nealric
12-11-02, 04:30 PM
I am currently running a 360gph bilge pump in my rig. However, I recently obtainted a senfu 240-700lph (about 65-185gph) that is much much quieter than my noisy bilge pump. How much performance drop will I see if I switch?
Im running about 5 feet of hose with 2 1ft lifts.
The other benifit of the senfu pump would be that its ac so it wouldnt sap my psu.
If the only thing in your cooling is your cpu and not gpu or nb, and you don't have a massive radiator, you'd prob would lose very very little switching to a 185gph pump from a 360gph pump. Also, I don't think bilge pumps are meant to run 24/7
nealric
12-11-02, 06:51 PM
I dont even have a radiator :D
My res is in a minifrige with the evaporator in the res.
You are right about bilge pumps and running 24/7
but i got it for free and I dont run my rig 24/7
SkiFletch
12-11-02, 07:03 PM
yeah, that should be fine. you wont notice that much difference. and i'd get away from the bilge pump before it breaks ;)
nealric
12-11-02, 09:29 PM
One thing I forgot to add- The new pump is on 3/8 barbs, but the rest of the sytem is on 1/2- is that a problem?
Basically what the pump's on doesn't matter. The pump's flow is what it is and I doubt your going to lose flow due to the pump being on smaller barbs than the rest of the system. The reason you'd lose flow if that the pumps gph is lower, not that it uses smaller barbs. Were you using 3/8" tubing and everything, it would take less time for one molecule of water to complete a cycle in the setup, but you would be moving less molecules synchronously, so your flow would be the same.
Although its not technically accurate, you could say you are moving more water slower. (You're actually moving the same amount of water at the same gph, but the water itself is by perspective, moving slower as it recieves equal backpressure with a much wider path to follow. I have a hard time explaining it.)
100 people must get from point a to point b. no matter how the move they must all have arrived at a Specific time. If they move in a single file line (3/8" tubing) they will run to make it. If they move in a double file line (1/2" tubing), they can and will walk and still make it at the same time as the single file line.
That's approximate, by the way, and their are likely some resistances that change to slightly alter the outcome... but I doubt it would be a significant change.
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