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Old 01-09-2009, 08:43 PM   #1
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Default fixing sloppy weld job

Of course it was too good to be true. Long story short - my welder who swore her did all sorts of medical and sanitary welding got a bit sloppy on my MT. the inside MT welds around the nipples are not pitted, but are a bit rough. Also, and more importantly, there is funk - burnt beer and small slag in the keg.
My question - what is the most effectively way to clean this all out?


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Old 01-09-2009, 08:56 PM   #2
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I am wondering the same thing. What can i grind/polish with that will not cause the stainless to rust?


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Old 01-09-2009, 09:00 PM   #3
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maybe a rough sandpaper and then finish it with a smaller grit? I sand all the crap off the outsides of my kegs and they don't rust I don't see why it wouldn't work for the inside.
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Old 01-09-2009, 09:02 PM   #4
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A grinding stone in a Dremel would work fine. Just make sure you use a new stone that has not been used on other metals or you'll have the rusting issue. Working/cutting the SS doens't cause a problem, it's embedding other metal in the SS that rusts.
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Old 01-09-2009, 10:26 PM   #5
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oh boy - a dremel would take a lot of time. What about an angle grinder or orbit sander?
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Old 01-09-2009, 10:52 PM   #6
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It's probably not an issue....but maybe you should take it back and tell her it's not a sanitary weld, though.
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Old 01-09-2009, 11:08 PM   #7
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no matter what you do youll still have gouges in the metal your removing. its not a sanitary weld and needs to be redone. granted youll be boiling it afterwards and sterilizing the wort while boiling so it depends on what you want to do and if it maters.
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Old 01-09-2009, 11:23 PM   #8
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If you paid that welder why don't you take it back and ask that it be cleaned up? Stress that any grinding will need to be done with a new stone or wheel and explain why.
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Old 01-10-2009, 12:24 AM   #9
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You don't need a sanitary weld in a HLT, MT or BK. It would be important in a fermenter.
You can buy a flap wheel for your drill or angle grinder and clean it up a bit. I would also hit it with a 3M green scrubbie and some Bar Keepers Friend.
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Old 01-10-2009, 12:43 AM   #10
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Sanitary is not necessary. As long as it's not leaking or rusting, consider it a success.


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