Direction of flow in Cerges reactor? - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 03-27-2016, 10:20 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Jun 2014
Location: Canada
Posts: 109
Direction of flow in Cerges reactor?

Hi everyone,

I recently built a pretty big cerges reactor for my 200 gallon and was confused about which direction the water should flow in and out of the reactor. There seems to be a lot of mixed opinions on this and was wondering if there is a consensus on what works better. Right now the water is pumped down along the sides of the housing and then up through the middle pvc pipe.... but Ive also seen/read that people have it in the reverse direction where the water comes in down through the middle PVC pipe, up along the sides of the water housing and out the reactor . Any help would be appreciated.

Vincent

Last edited by vincel892; 03-27-2016 at 10:39 PM. Reason: changed directions
vincel892 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 03-27-2016, 10:29 PM
Wannabe Guru
 
latchdan's Avatar
 
PTrader: (17/100%)
Join Date: Sep 2007
Location: Paso Robles, Ca
Posts: 1,287
Mine comes in through the top then out the cpvc. Air tries to go up while water goes down. There is an arrow on my filter housing.

Bump: Does the co2 Just fly out the other way?
latchdan is offline  
post #3 of 7 (permalink) Old 03-27-2016, 10:38 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Jun 2014
Location: Canada
Posts: 109
Quote:
Originally Posted by latchdan View Post
Mine comes in through the top then out the cpvc. Air tries to go up while water goes down. There is an arrow on my filter housing.

Bump: Does the co2 Just fly out the other way?
Oh wait,, now that I think about it.. the water comes down the sides of the filter housing and up and out the center pvc.. just like yours. The CO2 does get dissolved but I do see microbubbles in my tank
vincel892 is offline  
 
post #4 of 7 (permalink) Old 03-27-2016, 10:42 PM
Wannabe Guru
 
latchdan's Avatar
 
PTrader: (17/100%)
Join Date: Sep 2007
Location: Paso Robles, Ca
Posts: 1,287
Ive heard if the flow is too strong it will push the co2 out. There are different size housing. Ive ran a xp1 and sunsun 304b On the small size one. The xp1 worked a little better.
latchdan is offline  
post #5 of 7 (permalink) Old 03-27-2016, 10:51 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Jun 2014
Location: Canada
Posts: 109
Quote:
Originally Posted by latchdan View Post
Ive heard if the flow is too strong it will push the co2 out. There are different size housing. Ive ran a xp1 and sunsun 304b On the small size one. The xp1 worked a little better.
Oh I see. My housing is 20" tall and 4" wide. The CO2 actually goes through a rex grigg type reactor first before going into the filter housing so the flow is already reduced quite a bit. But maybe my pump is too strong. So I might need to put a valve to control the flow into the cerges.
vincel892 is offline  
post #6 of 7 (permalink) Old 03-27-2016, 11:35 PM
Planted Tank Obsessed
 
Turningdizzy's Avatar
 
PTrader: (12/100%)
Join Date: Apr 2014
Location: NE Texas
Posts: 484
Quote:
Originally Posted by vincel892 View Post
Oh I see. My housing is 20" tall and 4" wide. The CO2 actually goes through a rex grigg type reactor first before going into the filter housing so the flow is already reduced quite a bit. But maybe my pump is too strong. So I might need to put a valve to control the flow into the cerges.
I am not an expert in this, but, I can offer my observations. In the past, when I have run the CO2 through another reactor before the cerges, I would get alot of micro bubbles. I finally decided that the other reactor was making the bubbles so small that they were swept through the cerges. I figured that a large CO2 bubble would resist the current and try to rise, whereas a smaller bubble just rides the flow and gets swept into the tank. I still have a few micro-bubbles even after I put a bypass in with a ball valve to adjust the bypass flow. My cerges is a small one though (10", I think) and it has a Marineland C-360 pushing on it.
Turningdizzy is offline  
post #7 of 7 (permalink) Old 03-28-2016, 01:19 AM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Jun 2014
Location: Canada
Posts: 109
Quote:
Originally Posted by Turningdizzy View Post
I am not an expert in this, but, I can offer my observations. In the past, when I have run the CO2 through another reactor before the cerges, I would get alot of micro bubbles. I finally decided that the other reactor was making the bubbles so small that they were swept through the cerges. I figured that a large CO2 bubble would resist the current and try to rise, whereas a smaller bubble just rides the flow and gets swept into the tank. I still have a few micro-bubbles even after I put a bypass in with a ball valve to adjust the bypass flow. My cerges is a small one though (10", I think) and it has a Marineland C-360 pushing on it.
Thanks for your input. This would mean getting rid of my first rex grigg reactor... Maybe ill give it a try and see what happens. The only problem is, I kinda use the first reactor as a bubble counter since my filter housing for the cerges is not transparent.
vincel892 is offline  
Reply

Tags
cerges, co2, diy, reactor

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome