MP40 Noise

[hobbyreefer]

I just installed 2 new MP40's in my Waterbox 6026 Peninsula (3/4" or 19mm glass). This is my first time with MP40s, but I feel like they are super loud. Sounds like an old dishwasher running. Is this normal? I have 2 Nero 5's in my other tank and I can barely hear them at 80%. Should I expect a lot of noise from the MP40s? I don't hear any whining or anything that sounds broken. They are just loud. I installed with the gasket, not spacer. Any ideas?

 

[TheHarold]

I just installed 2 new MP40's in my Waterbox 6026 Peninsula (3/4" or 19mm glass). This is my first time with MP40s, but I feel like they are super loud. Sounds like an old dishwasher running. Is this normal? I have 2 Nero 5's in my other tank and I can barely hear them at 80%. Should I expect a lot of noise from the MP40s? I don't hear any whining or anything that sounds broken. They are just loud. I installed with the gasket, not spacer. Any ideas?

MP40s or MP40QDs? Mine are silent— perhaps they are not aligned correctly?

 

[CasaReefer]

MP40s or MP40QDs? Mine are silent— perhaps they are not aligned correctly?

I bet that's it...

 

[hobbyreefer]

Yes, these are the quite drives.

 

[CasaReefer]

Turn them off and switch the heads.. make sure there centered and try again.. if they are off even a little they will wobble.

 

[dadnjesse]

Brand new wet sides need to be broken in, they will quiet down after a few days.

 

[JT2418]

Mine got quieter after a few hours