Step 2: Removing the Valve

First, you need to remove the valve to make room for the jig to fit in.  It's best to depressurize the keg as much as possible with a tap. If you don't have a tap, you can also push on the valve with a screwdriver to release the pressure.  Warning: You may be covered in old beer if you try this as it will be shooting out the top.

There will be a retaining ring ( not pictured)  just under the upper lip of the opening.  You can pry this out with a small screwdriver or something similar. Grab it with a pair of pliers and get it out of that lip. 

Now it just needs to be twisted counter clockwise a few degrees to come right out.  Put your screwdriver on the tooth pictured and tap it with a hammer.  This should twist it slightly, allowing you to lift the valve right out.
<p>You didn't show how to install the ball valve.</p>
<p>To avoid (or at least minimize) getting sprayed, gently lay the keg on it's side when depressurizing.</p>
Great job - I like how you made a jig to cut a nice circle with the plasma cutter. I've always messed up my freehand cuts, so that is a perfect solution. I believe the jig could be modified to accommodate an angle grinder (maybe using one of the grinder's threaded handle mounting holes). <br> <br>I saw one video where they tied a rag over the valve and then released the pressure with a long screwdriver. <br> <br>Prost!
Nice instructable, I think you covered the basics here pretty well. <br> <br>I made a very similar with less sophisticated tools last year. I used a loop of string and a sharpie to mark a circle around the keg's valve. Then I used an angle grinder with a cutoff wheel and some patience to cut out the top. If you have a steady hand this actually works pretty well. I mention it because many of us don't have access to a plasma cutter, so we need to find an alternative solution. <br> <br>Also for others who might want to try this: I wasn't able to remove the valve on mine despite some hours of fiddling, so I left it in when I cut the top out. As long as you make sure the pressure is drained before cutting, this works out OK. <br> <br>One other thing I did which was very helpful is I made sure that the opening I cut matched the glass lid for my pasta pot (standard 10 inch lid I think). It's nice to be able to put a lid on the keggle while you are chilling/draining the wort. <br> <br>Lastly I'd reccommend getting a ball valve assembly with a pickup tube. This will help you siphon all the wort out down to about 1/2cm left at the bottom of the keg. Otherwise you will 'lose' some liquid below the level of your valve. <br> <br>Cheers

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