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 04-03-2007, 11:37 AM   #1
Aquarium Advice Addict
Marconis's Avatar
Join Date: Dec 2006
Location: Queens, NY
Posts: 2,082
Rena XP2 Noise Problem...Still not fixed

I am a bit angry. I recently exchanged my two week old Rena XP2 canister filter because it was as loud as my previous HOB. So, I set up the new one last night, and I still have noise. Boy was I upset when I heard it was not silent. Some say it needs to break in, but I am sick of it because mine did not last time.

I must be doing something wrong, because there is no way in hell I could've bought two faulty filters one after the other. The sound seems to be coming from the impeller. Could there be an air leak somewhere? Air bubbles only come out of my spray bar for about 30 minutes after taking off the top part. I tried taking out my media under the white foam (which consists of bio balls and some more foam) and that didn't make a difference. Does anyone else have a noise problem with their Rena XP that has a solution to why its being so noisy? I also put a towel under to get rid of vibration, but its still noisy.

I emailed AP about two days after my first one began to get noisy and still have not gotten a reply. I called many times as well, but have never gotten through, so I gave up.

Marconis is offline   Reply With Quote
Old 04-03-2007, 12:40 PM   #2
Aquarium Advice FINatic
Join Date: Jun 2006
Location: Appleton, WI
Posts: 578
Does the sound change (either level or type) after the air bubbles are expelled (you referenced ~30 minutes)?

Since it wasn't mentioned, I am assuming that the filter is not leaking. But I would check the seal around the motor housing to make sure it it situated properly and doesn't have any damage. Other than that, make sure your intake tubes (the ugly blue inflexible ones in the tank) are very tightly together. Air can get in that way, and either ruin your syphon or add air to the system. Also, make sure the intake doesn't have air bubbles going into it.

I really don't think that there is anything wrong with it (as in defective), but probably needs to be checked over very thoroughly (which I am sure you have done). I had many issues with my 2 xp1's and my xp3 that can all be attributed to my own stupidity or dumb bad luck. After exploring, all have been cured. Keep trucking on this, and let us know how we can help more.

75g FW Planted Community; 55g African Cichlid
29g Biocube SW Reef;12g AP Mantis Shrimp/Brittle Star
2 Cats, 2 Dogs, 5 Turtles
MSU Fan is offline   Reply With Quote
Old 04-03-2007, 01:13 PM   #3
Aquarium Advice FINatic
Join Date: Apr 2006
Posts: 783
How tall is the head?
Come Join The Dark Side
Marc118 is offline   Reply With Quote
Old 04-03-2007, 02:21 PM   #4
Aquarium Advice Addict
Marconis's Avatar
Join Date: Dec 2006
Location: Queens, NY
Posts: 2,082
Originally Posted by MSU Fan
Does the sound change (either level or type) after the air bubbles are expelled (you referenced ~30 minutes)?
Yes, the sound does change but it's only a noticeable change if you have your ear up to the canister. It goes from rattling water noise to just plain old loud humming and impeller noise (or at least I think it is the impeller.) I will check all of my connections, yet again, and will get back to you.
Marconis is offline   Reply With Quote
Old 04-03-2007, 03:26 PM   #5
Aquarium Advice Apprentice
Join Date: Mar 2007
Location: Red Deer, Alberta, Canada
Posts: 42
It seems to me that the noise you are experiencing is coming from the impeller. As a matter of fact, that is the only moving part and therefore the only place the noise could be coming from. So the racket is as a result of a moving part meeting up with a non moving part. It is mightily strange that this has happened once, never mind twice. There are several things that you need to check.
First, take the impeller assembly out of the plastic housing and give the inside of the housing a good inspection for malformations in the housing . Highly unlikely but have a go anyway. Also, at the same time have a real good look at the impeller blades to insure that they are symmetrical and not damaged. If not symmetrical the impeller will cause significant stress on the axle and the armature openings and may result in the axle becoming out of true or the armature holes becoming out of round. Similar to running an out of balance propeller. This may cause significant damage to the both the drive system and the engine. If the impeller blades are damaged replacing the impeller is only part of the solution. You must determine what caused the damage and correct the flaw (read as stick the whole thing in the retailers ear). Have a real good look at the replacement to insure that the same problem doesn't exist in the replacement filter. I would also insist that the replacement be run in at the store. No point going through that process again.
Second, make sure that the axle (rod) that passes through the armature is not out of plumb/straight/true. Dry the axle well and roll it on a smooth flat surface such as a counter top. You will be able to tell by the way it rolls if the axle is out of true.
Three, examine the armature very closely specifically the holes in each end that the axle passes through. These holes can magically become out of round (not true axle or too much lateral motion in the housing) and therefore cause a racket.
Four, upon removing the impeller assembly from the housing there should be a rubber seat on each end of the axle. These forestall lateral motion of the impeller in the housing. If one of these is missing all H*** will brake loose and the racket will be unbearable. Be careful as sometimes the bottom seat that is on the lower end of the axle doesn't come out with the axle. This would cause me to suspect that the seat ID is too large for the size of the axle and is therefore potentially allowing too much lateral play in the housing by the impeller axle. I am now out of ideas.
I have 2 xP5's that I have had some problems with all of which have been related to the 4 items above. The xP5's were quite quiet at the start, as compared to my recollection of an Aqua Clear HOB from 15 years ago. Further more, with time there is a natural lubricant build up on the impeller and in the impeller housing that is somewhat akin to slime coat. When cleaning the filter don't take the impeller out or clean the impeller housing unless there is a noise issue or a flow issue that is not cured by cleaning the filtration media. My xP5's are silent for all intents and purposes. The internal fan on one of the light fixtures makes more noise the the 2 xP'3 together.
I would suggest that you go back to the retailer, again, after checking for the issues above and request a new impeller assembly. If that doesn't solve the problem I would be starting to think there is some design flaw in the xP2. I find this hard to accept as they sure sell a pile of them and I have not heard a lot of carping about their performance.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. - Albert Einstein
The avatar is Spook the 19# watch cat.
vic is offline   Reply With Quote
Old 04-03-2007, 04:57 PM   #6
Aquarium Advice Addict
Marconis's Avatar
Join Date: Dec 2006
Location: Queens, NY
Posts: 2,082
Ok, now I am almost positive there is an air leak. I was adjusting a towel I have under it to reduce vibration, and when I place it back on, tons of mini bubbles shot out of the spray bar. When I moved it back and forth, some more bubbles came out. I have checked everywhere and CANNOT FIND WHERE IT COULD BE GETTING IN!
Marconis is offline   Reply With Quote
Old 04-03-2007, 05:34 PM   #7
Aquarium Advice Addict
travis simonson's Avatar
Join Date: Dec 2004
Location: Englewood, CO
Posts: 2,073
Wow vic, you sound like a man who knows your filters. I learned several things just reading that post. Thanks

As a previous owner of XP filters I can say that I've seen them make noise in two different ways: 1] bad/unbalanced impeller; and 2] bad vacuum somewhere in the system leading to a bubbling noise.

Take vic's advice on the impellers because that guy knows what he's talking about.

As far as bad vacuum goes, first check the poorly designed square gasket around the head assembly on your XP. I've had more problems with this than any other part of the filter. Make sure it is seated well and not crimped anywhere. I have found that this can lead to poor vacuum and bleed. Next check your hose fittings. Get some serious clamps rather than the cheap plastic clamps that are sent with the filter. Just make sure not to tighten them down too far or you can break your filter.

This should not be an unsolvable problem. Best of luck and let us know how things progress
“There is something in the quality of a good translation that can never be captured in the original.”
-William Gibson
travis simonson is offline   Reply With Quote
Old 04-03-2007, 06:56 PM   #8
Aquarium Advice Addict
Marconis's Avatar
Join Date: Dec 2006
Location: Queens, NY
Posts: 2,082
Wow, thanks Vic. I am going to get started on that right away.
Marconis is offline   Reply With Quote
Old 04-03-2007, 07:05 PM   #9
Aquarium Advice Freak
Join Date: Jan 2007
Location: Illinois - Champaign/Chicago
Posts: 259
Send a message via AIM to David14259
Wow, nice post. I'm going to check this stuff on my filter.

My Tank: 20 Gallon Freshwater High Tech Planted
My Plants: Dwarf Sagittaria, Riccia, Crypt Lutea, Rotala Macandra, Corkscrew Val, Blyxa Japonica, Ambulia, Anubias Nana, Flame Moss, Christmas Moss, Echinodorus Parviflorus.
My Fish: 1 German Gold Ram, 3 Praecox Rainbows, 1 Otocinclus Catfish, 1 Siamese Algae Eater, 1 Rummynose Tetra, 4 Cherry Barbs
My Inverts: Ramshorn Snails, Apple Snails.
David14259 is offline   Reply With Quote
Old 04-03-2007, 07:44 PM   #10
Aquarium Advice Freak
Join Date: Oct 2006
Posts: 328
Are you sure it isn't just air bubbles that have not escaped the filter chamber yet?

75 Gallon
Rena FilStar xP3, Aquarium Systems Visi-Therm 200W (2), Coralife 48" Aqualight 260W 6700K
10 Gallon Hexagon
Hagen AquaClear 30, Visi-Therm Deluxe 50, DIY CF 20W 6500K CF, Hagen Natural CO2 System :: Bloodfin Tetra (1), Red-eye Tetra (3), Black Skirt Tetra (3), Harlequin Rasbora (6), Platy (1), Otocinclus Catfish (1) :: Rotala Indica, Hygrophila Difformis (Wisteria), Cabomba Carolinia
tropicalfish is offline   Reply With Quote

noise, rena

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
rena xp2 $50 jrp1588 Archive 10 06-05-2009 11:24 PM
Replumbing my Rena XP2, need help!! helicopter DIY Projects 7 05-02-2007 09:13 AM
FS: Rena Filstar xp2 - PA Archive 0 01-30-2006 04:20 PM
rena xp2 or xp3 cabbspapp General Hardware/Equipment Discussion 6 09-27-2005 04:53 PM
Problem with Rena Filstar xP2 tubing JamesMJ2 Freshwater & Brackish - General Discussion 10 12-16-2003 11:21 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 11:01 AM.

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