View Full Version : Help!!! Noisy Pump

08/25/2006, 09:21 PM
I have a Mag 36 return pump. Other than putting two cut to fit filters doubled over under it. Any suggestions on quit this dumb thing?:confused:

08/25/2006, 09:22 PM
I mean muffling...

08/25/2006, 09:30 PM
Why do you have such a huge return pump?

08/25/2006, 09:39 PM
It is for my 110 gal. The guy that advised me, recommended atleast 2200 gph. So with the distance and the number of 90's the output is around 2200 gph. This way when we decide to go to a reef tank, I will be ready.

08/25/2006, 09:43 PM
Way too much return pump and not a very good pump.

For your 110g, I wouldn't do more than 1200 GPH.. if you need more flow, use powerheads or a closed loop. There are a lot of benefits for lower flow sumps (less microbubbles, saves electricity, etc)

Also, the higher Mag drive pumps seem to be loud and draw a lot of electricity compared to other comparable pumps. Most people tend to stay away from Mag 24's and Mag 36's.

08/25/2006, 09:44 PM
I'm afraid you got some bad advice. Tank turnover does not come from the return pump. That pump is grossly over sized for a return pump. You should have 3 -5x display volume, about 325 - 550 GPH from the return. In addition, it is very difficult to get near the rated flow from a mag36. You would need at minimum, 2" plumbing attached to it. Small diameter plumbing will severely restrict the flow, and all you are left with is a noisy pump.

08/25/2006, 09:58 PM
okay...so suggestions on a replacement?

08/25/2006, 10:01 PM
If you want a REALLY quiet, very high quality pump, get an Eheim 1260. It will give you about 3.5 - 4x flow which is all you need. You wont even know its on.

08/25/2006, 10:05 PM
where can I get it online. Drs foster does not carry Eheim pumps

08/25/2006, 10:11 PM
Premium Aquatics (http://www.premiumaquatics.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=Eheim) FYI, if you have never used them, they are probably the best online merchant you will ever deal with. Highly recommended.

08/25/2006, 10:37 PM
that's great Thanks. But I really want something a little more powerfull. By the time a pump goes through the 9 ft of 1" return hose I have it will cut through that Eheim 1260.

08/25/2006, 10:38 PM
How much vertical height? If you need a stronger pump, get the 1262.

08/25/2006, 10:45 PM
5 ft horizontal, 4 ft vertical with one union, one check valve and 3 90s using 1" hose.

08/25/2006, 10:53 PM
The 5' of horizontal wont cause much restriction. Its the vertical that adds the head pressure. The rest doesn't look bad. You have a pretty typical return setup. The 1260 would be fine, but if you are looking for strong flow, you could try the 1262.

How big is the sump? What do you have for overflows and drain plumbing?

08/25/2006, 10:55 PM
Foster & Smith has eheim pumps in their catalog. You could run one 1262 for return and another for a closed loop and only draw 160 watts for the pair. Your mag draws 380 watts.

08/25/2006, 10:57 PM
What do you mean? Closed Loop?

08/25/2006, 10:59 PM
Can I hook two Eheim's to the same 1" return hose using a barb tee to Y them together?

08/25/2006, 11:05 PM
<a href=showthread.php?s=&postid=8015733#post8015733 target=_blank>Originally posted</a> by scarpenter
Can I hook two Eheim's to the same 1" return hose using a barb tee to Y them together?
I wouldn't do that. Dont get hung up on too much flow from the return pump. You dont need it. Again, 3 - 5x which is ~ 330 - 550 GPH on a 110G tank. A 1260 is right there since it would be 400 -450 GPH or so. A 1262 would be more like 750 - 800 GPH.

08/25/2006, 11:25 PM
I will try the 1262. I have to send this Mag back. To noisy.

08/25/2006, 11:29 PM
I think you will be much happier with it. Good luck!