how noisy are the little giant pumps?

[Jarett]

any one have good or bad expierence with these? mainly want to know about the noise.
thannks

 

[dlrepmn]

I have the Little Giant 4000 as a return pump from my acrylic sump/stand from the Aquarium Company. It is what he supplied with pretty much a kit for my 120 gal. I probably have 4' of head at the most. I am very happy with the pump. Very quiet even with the doors off. I can't hear it run. Many people have complained about these pumps, but I have not have had problem one. I am running it submerged though.

 

[lakebound]

ummm....very noise pump. I had the 4wxmd or something like that and decided to use it as a pond pump in the back yard! Go with the Iwaki's.

 

[wwanthony]

I have a couple. I also have Iwaki's. The little giants are reasonably quiet and quite reliable in my experience.

 

[northbay-reefer]

it's not that noisy, but not quiet either, if you have some rubber matt below them to keep them from vibrating, it might be better though.

 

[bkwudzjeep]

Mine have been pretty quiet in the past. I don't use them anymore (changed sump plan), but when I did research on these a few years back, I found lots of mixed reviews on noise.

 

[lakebound]

What made mine loud were the internal workings, the impeller and such. No matter how much padding I used, I would have had to build a noise dampening box around it thus elevating the heat and getting to overload temps, so in came the Iwaki's. Problem solved.

 

[seagrave]

pump

pump

I purchased my QO-4000 last year it has run non stop since And I still cannot hear it, it is submerged as a return.