Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 11-27-2017, 07:11 AM   #1
Aquarium Advice Freak
 
Cohenjl13's Avatar
 
Join Date: Jun 2017
Posts: 225
Connecting filters

I donít plan on doing this but I was wondering if anyone has or what advantages and disadvantages it would have to connect two different canisters through the output to the input of the next.

Would the pumps help push/pull the water through each other? Or would it just have less flow
__________________

__________________
Cohenjl13 is offline   Reply With Quote
Old 11-27-2017, 08:12 AM   #2
Aquarium Advice Addict
Community Moderator
 
Fresh2o's Avatar



Tank of the Month Award
 
Join Date: Jun 2012
Location: Northern Virginia
Posts: 12,734
I cannot see an advantage for doing this. Assuming that each filter has its set of coarse, medium, and fine mechanical filtration layers, then particulates and debris would be trapped in the first filter and never make it to the second. If the second filter had only biological media, then thatís fine, however, more media does not always mean more beneficial bacteria (as they are limited to the amount of nutrients present).
Disadvantages would be the output of the first filter will most likely not match the intake of the second filter. You will end up with either a negative or positive pressure situation. Also, should one of the filterís motors fail, then (depending on the design of the impeller housing) it could impede the flow overall.
You are better off just running one or both (one would act as a failsafe).
__________________

__________________
I am an ALGAE farmer.
Terms of Service | Community Rules | FresH2O's Planted Tank | Fresh2o's Shrimp Tank
Fresh2o is offline   Reply With Quote
Old 12-07-2017, 01:46 AM   #3
Aquarium Advice Activist
 
speedy51's Avatar
 
Join Date: Apr 2011
Location: Miami
Posts: 138
I agree with Fresh2o. There is no benefit to connecting two filters together especially two different filters as you said. If the filters are different you will most likely have to different gph which will be a problem. I would run them independently.
__________________
100 Gallon Reef Tank - Work Tank
300 Gallon Freshwater Tank - New Build
speedy51 is offline   Reply With Quote
Old 12-12-2017, 10:04 PM   #4
Macro Addict
 
54seaweed's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Apr 2012
Location: Colorado
Posts: 7,807
running them separately would give you the best performance of each filter
running them back to back the first filter would be doing all the work second one would be just a waist of good filtration that it could do on its own
__________________
Save
54seaweed is offline   Reply With Quote
Old 12-12-2017, 10:47 PM   #5
Aquarium Advice Freak
 
Cohenjl13's Avatar
 
Join Date: Jun 2017
Posts: 225
I know that itís a pointless venture, I was just wondering. Also, I have two canisters sitting under my tank and Iím worried Iím losing a lot of filtration, suggestions on how to increase flow because of height issues? I canít move my canisters up because of where it is wife doesnít want to have them visible.
__________________
Cohenjl13 is offline   Reply With Quote
Old 12-13-2017, 10:56 AM   #6
ZxC
Aquarium Advice Addict
 
ZxC's Avatar
 
Join Date: Nov 2017
Location: London, ON
Posts: 1,099
Quote:
Originally Posted by Cohenjl13 View Post
I know that itís a pointless venture, I was just wondering. Also, I have two canisters sitting under my tank and Iím worried Iím losing a lot of filtration, suggestions on how to increase flow because of height issues? I canít move my canisters up because of where it is wife doesnít want to have them visible.
If the motors are the same as their larger brothers/sisters you could swap impellers in favor of a higher flowing impeller. Canister filters are engineered with the hobbyist in mind, placing it under the tank, in a stand or something of the like. I think you are over complicating the concept of a canister filter.

Set it up underneath the tank, and as long as you aim for close to 10x turnover an hour, you are looking good, just go off the manufacturers flow rate and don't really worry about head loss unless you are pushing the limits of what the filter(s) can effectively filter.
__________________
ZxC is offline   Reply With Quote
Old 12-13-2017, 12:09 PM   #7
Macro Addict
 
54seaweed's Avatar



POTM Champion
Tank of the Month Award
 
Join Date: Apr 2012
Location: Colorado
Posts: 7,807
[QUOTE=Cohenjl13;3479274]I know that it’s a pointless venture, I was just wondering. Also, I have two canisters sitting under my tank and I’m worried I’m losing a lot of filtration, suggestions on how to increase flow because of height issues? I can’t move my canisters up because of where it is wife doesn’t want to have them visible.[/QUOTE

Quote:
I cannot see an advantage for doing this. Assuming that each filter has its set of coarse, medium, and fine mechanical filtration layers, then particulates and debris would be trapped in the first filter and never make it to the second. If the second filter had only biological media, then that’s fine, however, more media does not always mean more beneficial bacteria (as they are limited to the amount of nutrients present).
Disadvantages would be the output of the first filter will most likely not match the intake of the second filter. You will end up with either a negative or positive pressure situation. Also, should one of the filter’s motors fail, then (depending on the design of the impeller housing) it could impede the flow overall.
You are better off just running one or both (one would act as a failsafe).
like said here running through 2 canisters and one motor dies out pulling water through the 2 canisters with media would just about stop the flow. and put a big strain on the pump motor
at first I thought I would have this same issue with 1 canister and 2 pumps
if one pump died would the flow stop. no if the outlet pump died it would run as if t had the one pump from the beginning, if the inlet pump died it would still run as well just at a slower pace because of the strain of pulling the water.

after some trial and error until I got things placed right . because of how the pumps are placed inline if one fails the other would still keep the flow going just at a slower rate , if your intake pump failed your outlet would pull it through putting extra strain on that pump and you would hear it but not any more than if it was running 1 pump all along . not fail safe but would function long enough for repair .

if your outlet pump dies out your inlet pump would work just as hard pushing the water through but like I said it would work long enough till a repair . nothing is fail safe its all trial and error

I've been running like this about a year now so far no issues but I am also always here to monitor if something went wrong,

first you need to find 2 identical inline pumps the stock ones are fine as long as you can match them.

on your intake put your pump inline as close to the intake as you can this will make your intake suction stronger pulling more crud from the water and force the water through your hose to the canister.

outlet side put your second pump about 1/2 way down the hose this will work with your intake pump pulling and pushing water through canister this will give you a higher flow rate out of your outlet .

running the 2 pumps doubled my flow rate if the one pump fail's the other will keep working but at a slower rate the water would still flow through the dead pump. so far I have had good luck with it with regular maintenance
keeping your media clean things can and will run smooth , it's just about how much you like to mac-giver things.

Ive been running this way a little over a year now with no major issues

Cobalt 4 stage canister filter
__________________

__________________
Save
54seaweed is offline   Reply With Quote
Reply

Tags
filter, filters

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
filters filters filters tmdavies General Hardware/Equipment Discussion 11 05-09-2011 09:42 AM
Filters filters filters GoneFishing Freshwater & Brackish - General Discussion 15 04-26-2011 11:26 PM
filters filters filters.... ??? inspire0522 General Hardware/Equipment Discussion 7 02-17-2006 08:20 PM
Filters Filters Filters.... Japola44 Freshwater & Brackish - General Discussion 11 02-03-2006 01:47 AM
Filters, Filters, Filters....... mandi Archive 2 04-18-2005 07:35 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 06:31 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.