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Old 10-15-2014, 10:24 PM   #281
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One important thing to remember... When you passivate the stainless it's important to let it AIR dry. I have not noticed any rust since r-epassivating... though I have not put star san in yet... I have been busy and have not had time to try and seal the leaking one... nore have I brewed sadly

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Old 10-16-2014, 11:55 AM   #282
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Yesterday I received some Citrisurf 2310 for passivating and a copper sulfate test kit. The test kit is a liquid that changes color in the presence of free iron.

I ran the test kit on two vessels - one from the factory that i hadn't touched and another that had been used, rusted, and that i cleaned up with oxyclean and then a detailed application of bar keeper's friend before letting it air dry for a week.

The bad news is that the unused and uncleaned vessel straight from the factory failed the copper sulfate test -- specifically along the welds in the upper collar. The good news is that the used vessel that had been cleaned and "passivated" with bar keeper's friend and left to air dry passed the copper sulfate test.

I went on to truly passivate the failed vessel with the citrisurf 2310 product. It passes the test fine now.

The citrisurf is a really nice product and is probably something that anyone who regularly uses stainless in their brewery should have on hand. It's easy to apply, non-toxic, and noticeably changes the stainless.

Going back to the Vessels -- if I had to guess, I'd say the tools in the factory had bits of iron hitching a ride. The good news is that it seems it can be cleaned off relatively easily.

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Old 10-16-2014, 01:36 PM   #283
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That's good news overall, Adam. At least the welds themselves are not iron-impregnated, and a simple passivation seems to do the trick. I agree that there was probably iron dust floating around the factory. I will be picking up some Citrisurf myself.

Thanks for the testing!

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Old 10-17-2014, 02:01 AM   #284
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I've been a little frustrated over the quality of the Vessel but it seems everyone looks at it differently than I. Guess everyone accepts the inferior product since it is crowd funded and "prototype" status. So I figured if I'm stuck with it I might as well modify it to my needs. Since I ordered it ported and the hole was bigger than I anticipated for my SS Brewing Tech ball valve, I soldered a half coupler to the port and added the ball valve as planned. This allows me to fill it with PBW to start the cleaning process. I hope I can get it in shape to ferment in it. If not, what's the point?

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Old 10-17-2014, 11:31 AM   #285
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Quote:
Originally Posted by rappell View Post
I've been a little frustrated over the quality of the Vessel but it seems everyone looks at it differently than I. Guess everyone accepts the inferior product since it is crowd funded and "prototype" status. So I figured if I'm stuck with it I might as well modify it to my needs. Since I ordered it ported and the hole was bigger than I anticipated for my SS Brewing Tech ball valve, I soldered a half coupler to the port and added the ball valve as planned. This allows me to fill it with PBW to start the cleaning process. I hope I can get it in shape to ferment in it. If not, what's the point?
Mine will probably have flowers sprouting from the top in the spring. Things don't always work out the way we plan.
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Old 10-17-2014, 08:54 PM   #286
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Mine will probably have flowers sprouting from the top in the spring. Things don't always work out the way we plan.
I'm still working on making mine a fermenter, but it would look nice with hops or peppers growing out of it I will call it plan C. (Plan B is to convert it to a boil kettle). Hopefully though it will be a fermentor.

Has anyone got 100% of the black marks off on the inside?
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Old 10-19-2014, 01:51 AM   #287
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I'm still working on making mine usable - it came with a hole, which I soldered closed, and I'm still getting rust on the other welds after scrubbing it with BKF 4-5 times (and other cleanings). I'm letting it air dry really well this time, but if it's still rusty I'm going to try the citrisurf treatment. Even if it works out I'm not sure if it's worth what I've sunk into it.

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