Problem with new MP40

Chris918 · 03/01/2018, 02:26 AM

Hey guys.

I decided to get two MP40s for my Reefer 350. Both were dead quiet once installed and I was very pleased. I came home and found that one of my pumps is now very loud. I've had MP varieties for quite some time and none of them have ever sounded like this. Even on constant at its lowest setting it is twice as load as one of my MP10s. What could've happened? I hear a rattling from what sounds like the wet side. These are both brand new. Does anyone have any advice? Thank you!

Crooked Reef · 03/01/2018, 04:56 AM

Unplug it and make sure the wet side and dry side are aligned properly. I had that happen once.

Dmorty217 · 03/01/2018, 09:12 AM

Quote:

Originally Posted by Crooked Reef

Unplug it and make sure the wet side and dry side are aligned properly. I had that happen once.

+1 this is the most common mistake that people make. If its not aligned properly or the wrong space is used it will wear the dry side magnet to the point of it becoming loud. Also Ecotech won't warranty a pump if this is caused by improper alignment or the wrong spacer.

ca1ore · 03/01/2018, 10:22 AM

Right, use the correct spacer, make sure the wetside impeller assembly is snapped fully into the base, and check for alignment. If you put your hand on the dryside and you adjust the alignment of the wetside, it will be correct when there is almost no vibration from the motor.

Chris918 · 03/01/2018, 01:18 PM

I used the thin spacer since my glass is 1/2 inch. I've managed to get it to quiet down, but it is still considerably louder than my other one. I'm positive it is aligned and I'm using the correct spacer. I'll keep messing with it and hopefully it gets as quiet as the other one.

ryeguyy84 · 03/01/2018, 01:35 PM

take the wet side apart? maybe there's something stuck in it?

JP Reef · 03/01/2018, 01:58 PM

I have a tank with black sand. The sand is magnetic, and every once in a while a few grains get into where the magnet is and cause my wetside to make an awful loud grinding noise. I have to take it out and really clean it to get the sand out of it. It only takes a few grains to do it.

03/01/2018, 02:26 AM	#1
Chris918 Registered Member Join Date: Jul 2016 Posts: 174	Problem with new MP40 Hey guys. I decided to get two MP40s for my Reefer 350. Both were dead quiet once installed and I was very pleased. I came home and found that one of my pumps is now very loud. I've had MP varieties for quite some time and none of them have ever sounded like this. Even on constant at its lowest setting it is twice as load as one of my MP10s. What could've happened? I hear a rattling from what sounds like the wet side. These are both brand new. Does anyone have any advice? Thank you!

03/01/2018, 04:56 AM	#2
Crooked Reef Registered Member Join Date: Feb 2014 Posts: 1,765	Unplug it and make sure the wet side and dry side are aligned properly. I had that happen once. __________________ “In wine there is wisdom; in beer there is freedom, in water there is bacteria.” - Benjamin Franklin Current Tank Info: 90 gallon reef. Biocube 29 lionfish tank. Mantis tank.

03/01/2018, 10:22 AM	#4
ca1ore Grizzled & Cynical Join Date: Apr 2006 Location: Stamford, CT Posts: 17,319	Right, use the correct spacer, make sure the wetside impeller assembly is snapped fully into the base, and check for alignment. If you put your hand on the dryside and you adjust the alignment of the wetside, it will be correct when there is almost no vibration from the motor. __________________ Simon Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones! Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs

03/01/2018, 01:35 PM	#6
ryeguyy84 Registered Member Join Date: Mar 2011 Location: New Jersey Posts: 2,753	take the wet side apart? maybe there's something stuck in it? __________________ Current tank: 90G mixed reef. Current Tank Info: 90 gallon

03/01/2018, 01:18 PM	#5
Chris918 Registered Member Join Date: Jul 2016 Posts: 174	I used the thin spacer since my glass is 1/2 inch. I've managed to get it to quiet down, but it is still considerably louder than my other one. I'm positive it is aligned and I'm using the correct spacer. I'll keep messing with it and hopefully it gets as quiet as the other one.

03/01/2018, 01:58 PM	#7
JP Reef Registered Member Join Date: Feb 2013 Location: Greensburg, PA Posts: 207	I have a tank with black sand. The sand is magnetic, and every once in a while a few grains get into where the magnet is and cause my wetside to make an awful loud grinding noise. I have to take it out and really clean it to get the sand out of it. It only takes a few grains to do it.