how hot does your maxi-jet 1200 get?

[orangezero]

i am running it inline like the guy at the manufacturer said i could. pretty sure i got most if not all the air out of the setup because i don't hear a lot of noise. really quiet actually. i can see the water circulating. but the thing gets pretty hot, and i don't think this is very good for it.

anyone run a maxi jet inline? i don't remember it running anywhere close as hot as this even when in a vary small amount of water. also, do the ehiem and danner pumps get hot too?? just looking for some kind of comparision.

putting my little temp probe up to it gets me a reading of 47.5 C, that can't be good


thanks,

[Bender]

I have the same pump but its in a reservoir. I have noticed it getting close to hot but it has been running fine for almost 6 months. Try pointing a fan at the pump to cool it down.

[ButcherUK]

Just measured my Eheim 1048, running inline: 30C

[Diggrr]

My Danner gets a little warm..not in any danger of melting. I just attribute it to running with so many feet of 3/8" tubing instead of 1/2".
If you are worried, you could stick your old hsf on it.;)

[orangezero]

thanks for the quick replies. i figured bender would respond, as you are the only one i know for sure that runs one.

guess what my cpu temp is : 46-47. at least i have my heater core before it runs to the cpu. that's with my mobo temp sensor though, so grain of salt to that.

oh, well, at least i got that thing to stop making so much noise. still going to try to run two in parallel. i just put some rtv silicone on to seal them up.

i need some place to get Y connectors, the T connectors just seem to make the water flow back into the other pump. i think i'm going to have two barbs going into the heater core, and one out. that takes care of one. the other will probably be a homemade jobby.

thanks again

[orangezero]

i have it running out to a 3/8 barb, you think that would be why? the incoming line is a 1/2" barb, maybe i'll change that and see if it helps,

i think it is supposed to be 5/8 in and 1/2 out.

later

[Bender]

The out on the pump is the standard 3/8" so I don't think that would help. You can try drilling out the barbs for better water flow.

[f155mph]

I got one of those maxi. Mine does run pretty warm too, but I am going to put a fan infront of it. I really don't think it will hurt it. I got a bunch of aquriums with pumps like that and they been running for years.

[Bender]

Any Idea how much heat a pump would generate? I am using mine in a reservoir so it may be heating my water a little to much. I have a danner 1.9 sitting here I can try. I'll have to wait a few weeks for my broken bone to heal before I can actually work on it.

[orangezero]

don't know about heat it would produce. now that i think about it, when i used a two gallon tub as a reservior when i was trying them out i noticed the water was really hot sometimes. maybe it was the 1200 heating it up.

i'm a little worried only because my last pump (rio 400, please don't laugh) died on me. i think it was because i modified it to run inline and it was too hot for too long. but they aren't supposed to be run like that and the maxi jet is, so who knows.

yeah, you are right about the output being 3/8s. i had been putting some 1/2 tubing on it that is 3/8 inner dia and it fit over perfect with no barb at all, but i am using a 3/8 barb now and the inner diameter of that is much less than 3/8, that's what i meant by that. its just a cheap plastic one so i don't know if i want to try and make it any bigger, plus its at an angle.

do you guys know if it is real bad to put a lot of right angles in the circuit? i was pretty impressed with the 1200 pushing water in a tub but (much more than my "fixed" rio) but when i put tubing and all on it , well, it seemed a lot slower. thinking maybe it doesnt' have a whole lot of umph when there is a decent amount of resistance against it. but then again, i only have the 400 to compare it with, and its better than that by a mile.

later,

[orangezero]

forgot, its up to 51.6 now. almost too hot to hold in spots.

[Bender]

Wow that is hot. Can you try using your 400 gph pump and see if it lowers the cpu temp?

[ButcherUK]

Originally posted by orangezero
forgot, its up to 51.6 now. almost too hot to hold in spots.
Wow my eheim barely gets warm. That thing sounds like a disaster waiting to happen.

[orangezero]

yeah, i'm going to try some other stuff today, but the rio 400 is liters per hour, not gallons, so its much smaller. not sure what that is in gallons, darn rest of the world and there easy to use metric system.

wonder if it may help to have it cpu > heater core > pump, just to have cooler water into the pump. may help since my temps are fine on the cpu.

later

[orangezero]

yeah, i'm going to try some other stuff today, but the rio 400 is liters per hour, not gallons, so its much smaller. not sure what that is in gallons, darn rest of the world and there easy to use metric system.

wonder if it may help to have it cpu > heater core > pump, just to have cooler water into the pump. may help since my temps are fine on the cpu.

later