Ecotech Marine MP40w ES operating noise

[cwatkins]

If you buy used and they are out of warranty and you consider yourself as a skilled tinkerer, there is a thread on RC that goes over replacing the bearings on them to quiet them down. Buy some really good high quality RC bearings from Boca. You'll need a couple tools and a bearing puller to do it without damaging anything.

I have the bearings downstairs for my 1.5 yr old MP40, I just need a bearing puller and then I can do the replacement.

If you do decide to do this, just don't use a screwdriver to pry off the bearings as it will for sure break the magnet.

No guarantees on how much quieter this will make them though.



P.S. In theory you shouldn't need to do this as the product should be engineered to be quiet. But as we all know, they slightly lack in this area...

[stellarfly]

Hey guys!

A fellow reefer (reefme) invited me to his home the other day for me to witness first hand what MP40's sound like and I was impressed! When aligned properly they are dealy quiet! no jokes. The hallide fans where more noisy than the powerheads. I am convinced that I will own a pair of vortechs for sure! Thanks for everyones imput. This forum is so helpful, I can't emphasize this enough!!! Canreef all the way!

[cwatkins]

Quieter than the MH fan? I find that hard to believe. I have 2 of them and at full power I swear I can sometimes hear them from the next floor.

Now at 50%, maybe they'd be really quiet...

[Madreefer]

I dont know why mine are the only load ones around. They are aligned properly. My bedroom is about 50ft from my tank and when they kick on in the morning after night mode I can hear them as plain as day. I returned one on warranty and after a while it too became noisy. So all 3 have been noisy and all from the dry side. I wont get rid of them though so I put up with it.