What is a good return pump?

Interested to know what are some of the good pumps used in a sump return? I see mag drives a lot on the boards. How about the quiet one pumps? Any good? Thanks
 
Never used the quiet ones but I can give a thumbs up for the mag pumps though.Clean'em out once in a while and they are a good reliable pump at least the ones I have used have been.
 
I did'nt say anything was wrong with them.I have heard they are pretty good pumps but I have never used one so I can't comment on the quiet one pumps.Ampmaster makes a good pump,they are pretty strong pumps.
 

robchuck

Active Member
For in-sump return pumps, I've only used Rios and Mags. I also used a Little Giant external pump on a system I no longer have set up. Out of those pumps, I've liked the Mag the best because it is the quietest and easiest to maintain. Plus it doesn't help that the Rio fried itself in my sump and almost killed off everything in the tank.
 
I only use a rio for mixing up my saltwater for a water change.I have heard to many horror stories about those pumps in people's tanks.
 
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bluedolphi

Guest
I am looking for the same thing.
Check out the Velocity T4. They are supposed to be near silent.
However...... I am concerned about heat transfer.
Anyone know of a pump that perhaps transfers less heat?
I really do not want to have to purchase a chiller..
 

mburnickas

Member
That is why I got the Little Giant. It is an external pump so I do not have to worry about extra heat in my fuge.
 
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bluedolphi

Guest
The T4 is an external also. But I spoke to someone who owns one near me.... and he had to install a chiller, due to heat transfer. :(
 

mburnickas

Member
Heat transfer from what? I must be either lights or some external source of heat (sun light etc).
Mine is in my finished basement which never sees about 60 unless the wife has the gas fireplace up to 50,000 BTU! Always cold.........
 
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bluedolphi

Guest
I will assume the heat is created from the impellar/shaft, etc..
The friction that a motor/pump creates, translates into heat. This heat is then transferred to the liquid.
It is safe to say that "all" pumps create some heat, and "all" pumps transfer that heat. Just some may create/transfer less.
 

mburnickas

Member
My point in the last post was that is if the T4 pump is external why do you care about the heat then? It does not effect the fuge, main tank etc. The ammount of heat from a housing, impeller etc is so small......
 
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bluedolphi

Guest
The heat generated is transferred to the fluid (water). The tank water absorbs the heat. The water passing through the pump is heated. And it can be enough to require the need for a chiller.
Depending on other factors, room temp, etc..
 

mburnickas

Member
I know the pump will heat the water by some delta but I am sure the heat in a large or small tank (ie 55) is so small it is nothing to worry about.
It will cool down going through the pipes etc unless the room is over 80 degrees
 
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bluedolphi

Guest
I spoke to someone who has the Velocity on their system. He noted the problem with heat transfer. It was quite apparent to him, after upgrading to the T4. It created a very real/evident heat problem. It is just to what degree. And as you mentioned, room temp, etc., could be a contributing factor. He had to install a chiller.
His tank is a 75 gallon.
The cooling down while going through the pipes would depend on the type of plumbing and also the distance as well as the velocity. Do not assume that the heat would dissipate prior to reaching the tank.
I appreciate the assumption that it should not be a problem, believe me..... I have my eye on this pump. I'd like nothing better than to not have to worry about any heat transfer problems, etc..
 

mburnickas

Member
I can dig out my heat transfer book and fluids from college???? :)
I am not cracking them. :) I would say the room temp, external heat plays a huge factor. I know when my wife has the 50K BTU fireplace on it gets of 85 in the room and I just shake my head.
the good thing about water is that it takes a long time to heat up. The bad side it takes a long time to cool down.
Plastic, if cooler, will cool water. also I think my new pump, litte giant has oil holes for SAE oil. .,....weird. Maybe his motor is low on oil? motor crushes going?
 
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bluedolphi

Guest
Who knows. Could be just the brushes are not worn yet, and creating more friction that is creating heat that is transferring the housing that is transferring to the water, for the time being. Bottom line is he noticed a heat increase when upgrading to this pump.
Hmmmmmmm.......?:notsure: I am trying to think of a fluid that heats up quicker... :)
 

mburnickas

Member
Well I hope that smae does not happen to me. this is my first external pump that I bought for this vary reason. So we will see.
 

tony detroit

Active Member

Originally posted by mburnickas
The ammount of heat from a housing, impeller etc is so small......

Any large tank owner knows that is not true.
 
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