quite pump ?

[troynel]

I have a mag 7 right now powering water through my 4 gfo etc reactors. It is making a horrible rattling noise and its brand new. Do all these pumps make a loud noise and if so which ones are quite?

 

[James77]

It shouldn't be rattling, but will have a decent hum to it. A quieter internal pump would be an eheim.