External pump / noise

[basscyn]

Guys,
I just bought a used Little Giant external pump for my build. This is my first ride with an external pump.

WOW...this thing is really loud. Is this inherent of external pumps?
I would be OK with a <u>little</u> noise because my sump/pump are behind the wall of my display. But I can hear this through the wall!!!

Are Little Giant pumps prone to be noisy?
Can they be fixed?

Thanks for the help.

 

[atlfishes]

Some are worse than others, I haven't owned a little giant, but I don't think they have the repuation for being quiet. How may GPH are you trying to push?

 

[basscyn]

1200-1500.

Any recomendations?

 

[zesty]

Should have gone to Radio Rentals!

 

[skriz]

those pumps are loud. Reeflo and Blueline externals are almost silent. I have both running and can't even tell they're on.

 

[atlfishes]

The posiden line is really quiet, but they add a lot of heat. I don't remember where their GPH maxes out at.

 

[tokejr]

Yeah, Little Giants are VERY noisy. Try getting a carpet square from Home Depot or Lowes (a sample) and put it under the pump. It's the vibration on a hard surface that makes them so bad.

That won't get rid of all the noise, but some of it.

 

[pochaxoo]

I bought a square of rubber and put the base of the pump on that so all vibration noise is gone. I get much more noise from the actual flow of water out the overflow and supply side flow into the tank than the sump. I have 2 4MDQX-SCs but they are in the basement so.... not so worried about it.

 

[rbredding]

I've got a blueline 40HD-X and you can't even hear it running... holding it, you can only feel the startup torque, there's almost no vibration...

 

[molson]

Yeah they vary alot, I had a gen-x that sounded like a freight train and replaced it with a blueline from MRC and the difference was night and day.

 

[basscyn]

I see a lot of Iwaki's for sale too.

Any thoughts?

 

[skriz]

Iwakis are great pumps. The cheif engineer at iwaki started his own companyanworld pumps (aka blueline).

Fyi: Mouse pads make great pump pads.

 

[weaglereefer]

Skriz;359791 wrote: Iwakis are great pumps. The cheif engineer at iwaki started his own companyanworld pumps (aka blueline).

Fyi: Mouse pads make great pump pads.

Didn't run into any intellectual property rights?

 

[skriz]

au01st;359807 wrote: Didn't run into any intellectual property rights?

He's a smart guy...he made some changes. He's not so creative though; the model numbers are almost identical!

 

[dan3949]

I could never get my Little Giant to run quiet. Mine had internal vibration that I could not stop. Finnally replaced with a Quiet One Pump. HUGE difference.

 

[rbredding]

au01st;359807 wrote: Didn't run into any <u>intellectual property</u> rights?

not if he was smart about it...:lol2: