Hot Hammerhead pump?

[Anonymous]

Is there any talk on heat from Hammerhead pumps? I've always had a basement sump and so never had to worry about heat, until this summer. When I switched to a 150 from my 120, I swapped out a half dozen submersible devices for 2 hammerheads, one on the return and one for a closed loop. Figured my temps would be even lower.

Every day my temps get into the low 80s, and on warm days into the mid to upper 80s. Typically 85 to 86. I have 2 4 inch fans on a (now) totally open canopy. I think it got very warm while we were on vacation last week, and my large encrusting monti colonies are not looking too good.

Right now in the middle of swapping out the closed loop hammerhead in exchange for my old 2900 sequence pump, and have a few submersible pumps in the tank keeping the flow going.

It's 88 outside, and my tank is at only 81. :?

 

[jumpincactus]

I am a little concerned with temps also. I am using a Sequence Dart for my closed loop and when I was servicing my skimmer today I accidently bumped my Dart and that puppy's casing around where the elec windings would be was hotter than a ****ant.

Not to hijack your thread but I would like to follow along on this one. Are the pumps we all use supposed to get so dang hot???

 

[Anonymous]

Well, not sure. I'm not too concerned if they are hot on the outside though, just if they are dumping heat in the water.

 

[cindre2000]

Have you tried running a fan over the pumps?

 

[Anonymous]

Can't imagine that would do much really. Other than just providing air movement, you need to have evaporation for fans to cool anything, and this is just hot dry metal.

 

[RobertoVespucci]

Tack on a heat sink with some thermal putty. Then the fan should do quite a bit.

 

[cindre2000]

RobertoVespucci is right. Part of the idea for external pumps is that the heat stays out of the water. Secondly, air movement does provide cooling as long as the temperature of the air is lower than the temperature of the object you are trying to cooling. Evaporation, on the other hand, does work much better since when the air evaporates, it takes some of the heat with it.

 

[Anonymous]

regardless, the pumps are sitting out in the open in a cool basement, and I highly doubt that blowing a fan on them will do diddly. They aren't that hot on the outside anyway. It's something about the way they are engineered that hot parts of the pump come in contact with the water, I guess.