Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 10-09-2008, 02:24 PM   #1
Aquarium Advice Apprentice
Join Date: Oct 2008
Posts: 16
Magnum 350 Problem - Please Help

I went too long without cleaning my tank and filter, so when I finally got around to it yesterday I was not completely surprised that I encountered some difficulty trying to get it to work normally.

The problem I am having is an intermittent sucking noise coming from, I believe, the outlet. The water level is high enough and even in the past when the water level did dip below optimal level, I have never heard this noise. When I opened the filter back up again last night I noticed that the gasket was torn. I googled my problem and surmised that it may have to do with a poor seal due to the gasket. So I went and bought a replacement gasket today and tried again. Still, I hear the noise.

The only other thing I can think of that may be wrong with it is that when I went to clean the filter the carbon housing was in pretty bad shape. So there's a definite possibility that there is some carbon stuck in the outlet. My question then is how would I best go about cleaning the outlet? I've only had the filter for a few months and it would seem to me to be a bit of a complicated procedure. What is the easiest way? And is that even the problem?

The noise is driving me crazy. I have even replaced the carbon filter with the micron filter, but still no luck. Please tell me what to do.

chambers is offline   Reply With Quote
Old 10-09-2008, 03:01 PM   #2
Aquarium Advice Addict
SpeedEuphoria's Avatar
Join Date: Jun 2008
Location: BCM
Posts: 1,225
Yeah that seal is was prob your main issue.

While cleaning the hoses would be a good idea, I'm not positive that its your issue. You can clean the hoses with a snake like brush, and I think your hoses are short so you may be able to use a shorter handled brush.

If your hearing a noise still, its normally air in the lines/filter, which is what the bad seal would have done. Some like to lube the seal with something like veggie oil(as its fish safe, dont use regular lube like wd40).

To me it seems you still prob have air trapped in the system which is what makes the chopping/gurgling noise. I would go over all the connections/seals again just to make sure they are sealed/no leaks. Then while its running you can tilt it a little to get the trapped air to pass through. If it clears up and sounds good, then a couple days later it happens again then this would say that you do have a leak in a seal/hose somewhere.

Good luck

10G,Planted- Endler's Livebearers+RCS, 55G,planted
Originally Posted by Kurt_Nelson View Post
Understanding the basics will let you make informed decisions on what advice to follow, and what advice is just plain hooey!
SpeedEuphoria is offline   Reply With Quote
Old 10-09-2008, 03:44 PM   #3
Aquarium Advice Apprentice
Join Date: Oct 2008
Posts: 16
Well I was able to get the diffuser off of the outlet. But I don't think a clog was the issue.

However, removing the diffuser did help me to diagnose what I think may be wrong. With the diffuser off, I turned the filter on to try to flush the outlet line. When I stuck my hand underneath the tube, though, it sucked on my hand. Now I may not be an expert, but I'm thinking the outlet should probably be flowing out.

I did not touch the hoses, so how would this even be possible? And, more importantly, how do I fix it?
chambers is offline   Reply With Quote
Old 10-09-2008, 07:39 PM   #4
AA Team Emeritus
jsoong's Avatar

Join Date: Aug 2003
Location: Edmonton, Canada
Posts: 4,222
Do you have the quick connects in your hose? It is pretty easy to switch those around & mix up in & out <did that a few times myself!> There are in/out arrows on the top of the Magnum 350, make sure the hoses are connected the right way.

The other thing may be the small up tube inside the filter not lining up with the "out" port on the lid ... I always have to first line that up before closing the lid, or the black tube will be slightly tilted & the pump is not connected to the outlet port. There is also an o-ring at that connection. If it is missing/broken that might be the problem.
80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
jsoong is offline   Reply With Quote
Old 10-09-2008, 08:03 PM   #5
Aquarium Advice Apprentice
Join Date: Oct 2008
Posts: 16
Thanks for the replies.

I ended up switching the hoses. Apparently, they were somehow on wrong. Must've been like that since I set up the filter months ago. I followed the instructions I had at the time, but either they or I were wrong.

Still don't know why it never made that noise before, though. But it seems to be working properly now.
chambers is offline   Reply With Quote

magnum, magnum 350

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Magnum 350 snipes287 Archive 0 05-31-2005 09:24 PM
Magnum 350 shaggydoo Archive 0 11-13-2004 01:09 AM
Magnum 350 canaster problem? RocketSeason Saltwater Reef Aquaria 1 08-04-2004 10:53 PM
Magnum 350 jhausinger Saltwater Reef Aquaria 5 06-08-2004 10:06 AM
Magnum 350 / Just got it! Scottw68TN General Hardware/Equipment Discussion 8 09-24-2003 12:08 PM

» Photo Contest Winners

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 07:10 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.