The gauge that says the pressure of the CO2 tank decreases (high pressure guage) when I shut off the main valve. If your high pressure gauge pointer moves after turning the cylinder wheel off, you have a leak. If you cannot find the leak, I would suggest changing your gas post o-ring to see if that’s the culprit. A problem spot. Home Bar Dispensing - Kegerator & Party Events (Residential), http://www.micromatic.com/forum/us-e...light=co2+leak, If this is your first visit, be sure to This technique tests the entire keg including the gas post, o-ring, QD and any tubing that’s connected. When I turn off the valve on the CO2 tank and leave the rest of the valves on overnight the high pressure decreases. As an Amazon Associate I earn from qualifying purchases. Links to other websites may also be affiliated including links that are submitted via comments or tips. Disconnect the gas line from the keg and see if it flows readily out of that, then you will know if it is your tap or your line/regulator, then if it the line/regulator, remove the regulator and crack the valve open to see if you get a burst of CO2 out of the tank, then you know if it is an empty bottle or a faulty regulator. Homebrew Finds is a participant in the Amazon.com Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. This technique also has the advantage of saving Star San and saving some clean up that’s required when you soak gear in Star San. After you change the gas o-ring, re-check using the pressure gauge method. Copyright © 2006-2018 Micro Matic , Inc. All Rights Reserved. Check out the complete list – Homebrewing Tips, Tricks & Shortcuts! This page was generated at 01:53 AM. Part of Our Homebrew Tips and Tricks Series. Was there a little plug in the gas in port on your tap that you didn't remove? I recently hooked up a 'new' CO2 tank, that way I have 2, 1 filled, one in-use. If the CO2 gauge method indicates a leak, you can start spraying with Star San to hunt it down. Can you get a crescent wrench on that and take it off, turning your gas off first, then when it is off, turn your gas back on to see if it flows well? Wonder if there is thread tape over the gas out port on your regulator, only letting a very small amount through??? Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on Tumblr (Opens in new window), Click to email this to a friend (Opens in new window), Bulk Keg Orings and Keg Repair Part Numbers, Ball Lock QD Adjustable Pressure Valve W/Gauge. To use Homebrew Finds you must be 21 years or older. Another option if you don’t have a spunding valve or other gauge (but do have a two gauge regulator) is to attach only one keg to your regulator and turn off the the CO2 tank. Charge your keg with CO2 as usual. I’m quick to replace o-rings, especially on the gas side. I just had a problem where my high side leaked where the pipe that screws into the regulator body was leaking. check out the. I have a stainless steel haier kegerator with a 5 pound CO2 tank, and 1 or 2 sixth-barrel kegs. I have never tried this test before. Borrow one or buy one and see if it fixes it. Use your usual serving pressure. Took it apart, cleaned it up, new teflon pipe dope rated to 3000 psi and it leak checked good at 700 psi from my 5 lb bottle (sat 3 days and no leak) Filled up the 20 lb bottle and reconnected and it leaked again from the same place!!! This was EXACTLY my symptom - high guage 0, low guage 12 with CO2 tank turned off. I wonder if parts in the regulator are missing??? You're saying the output pressure of the regulator decreases? The new bottle pressure was 850 psi. Originally, I went thru 1 5# CO2 tank in 1.5 half barrels so I ordered a new double gauge regulator thinking that was the source. Stated more simply, you need a QD on to see if it’s leaking, but you can’t see it if a QD is on. You can also buy a simple gauge [See: Ball Lock QD Adjustable Pressure Valve W/Gauge via MoreBeer] or make a gauge assembly for this purpose. Hmm, no hose clamps on any of the valves, just oetikers? Depending on what the pressure is set to and what temp the beer is, it could absorb some of the CO2. These typically cost just pennies [See: Bulk Keg Orings and Keg Repair Part Numbers]. All information is provided on an as-is basis. Over-pressurizing can mask leaks that may otherwise show themselves. It wouldn't hurt to have spare anyway. Note: If your keg has beer in it that is uncarbonated the pressure will drop some overnight (it is equalizing and carbonating the beer). For one the high pressure guage does not measure the CO2 in the tank at all. Wonder if there is thread tape over the gas out port on your regulator, only letting a very small amount through??? Practically speaking, I use it as a complement to that to test an otherwise difficult to check spot. This article has several incorrect statements. What you don’t want is a quick drop in pressure. For the most part, checking for keg liquid and CO2 leaks is pretty straightforward. I’m not suggesting this as a replacement for the Star San spray method.