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Thread: CO2 for a 10g
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post #25 of (permalink) Old 12-02-2012, 07:57 PM
Darkblade48's Avatar
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,713
Originally Posted by Axelrodi202 View Post
What is the difference between a grip-nut and brass check valve?
Brass check valve is made of brass.

Grip nut check valve uses the plastic nuts to screw the tubing on for a tight seal. If you are describing the one I am thinking of, then it is made of plastic.

Plastic eventually hardens with time. Brass does not, but you have to get a quality check valve; I have tried a few and they end up not working (allow water to leak backwards), so I've given up and just stick with plastic check valves now (and replace them every so often).

For your questions regarding pressurized CO2, might I suggest you take a look at my guide to pressurized CO2 (linked in my signature below).


A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
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