Cheap needle valve alternative - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 02-03-2010, 04:45 AM Thread Starter
Planted Member
 
Stasiu's Avatar
 
PTrader: (14/100%)
Join Date: Sep 2007
Location: FL
Posts: 205
Cheap needle valve alternative

I'm always searching around for cheap alternatives to use in this hobby while maintaining function, and I just want to pass along a discovery I made a few days ago. Accuair aquarium gang valves work GREAT as needle vavles and distribution manifolds for co2 injection.


Downstream from a good dual stage reactor and it's rock steady until your co2 tank is empty. In my experience they work atleast as well as the needle valves that come on milwakee and jbj regulators, I can easily adjust to rates less than 1 bubble per second. They're less than $3 at my local pet store, a considerable savings when compared to a 4 port manifold with 4 needle valves.
Stasiu is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 02-03-2010, 05:22 AM
Deactivated
 
PTrader: (48/100%)
Join Date: Feb 2007
Location: Stillwater, MN
Posts: 332
Next time they are hooked up and the co2 is on, try putting them under water in a bucket or something. I tried something similar and within a day the plastic valves were corrupted by the co2 and leaked noticeably when placed under water. I hope yours pass this test.
marrow is offline  
post #3 of 5 (permalink) Old 02-03-2010, 06:04 AM Thread Starter
Planted Member
 
Stasiu's Avatar
 
PTrader: (14/100%)
Join Date: Sep 2007
Location: FL
Posts: 205
Very good point. I'll do it tomorrow and repeat at a later time and post back.
Stasiu is offline  
 
post #4 of 5 (permalink) Old 02-04-2010, 04:02 AM Thread Starter
Planted Member
 
Stasiu's Avatar
 
PTrader: (14/100%)
Join Date: Sep 2007
Location: FL
Posts: 205
I put the whole unit in some water today and there were no leaks that I could see. It's been running for 4 days now, I'll try in again in a week or two.
Stasiu is offline  
post #5 of 5 (permalink) Old 02-04-2010, 05:41 AM
Planted Tank Guru
 
PTrader: (84/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,012
Plastic check valves tend to work for a few weeks, then the rubbery flattened tube or the diaphragm inside seems to fail. I'm not sure that all plastics are affected that way, so this may be a great idea. And, the valves are so cheap you could replace them every few months just as a precaution.

Hoppy
Hoppy is offline  
Reply

Tags
None

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