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leaking superstock
i had the same problem with my superstock i called wgd told them about it. they told me that the cup seal was leaking where it rested on the valve body. it had a deep scratch on it from the machine. they told me to lightly sand it with 400 to 600 fine grit sand paper until the mark was gone. i did what they said but after i used the 600 grit i went back over it with 1200 grit so it had a very smooth finish. take a piece of 600 grit lay it flat on a smooth surface hold it so it dont move and hold the valve body in hand make sure it is flat and go back and forth a few times keep checking it until the scratch is gone then do same with 1200 grit. i did it and i have no more leaks and the gun works perfect
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