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Old 04-07-2011, 03:33 AM   #11
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Acid Number 5 is the product typically used by brewers. There is also Acid Number 6 which I believe is used in a CO2 environment.



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Old 04-07-2011, 04:13 AM   #12
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Quote:
Originally Posted by pickles View Post
Specifically what acid? Im trying to prevent the gunk with as little work as possible.
Five Star Acid #5


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Old 06-08-2011, 06:35 PM   #13
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Is Acid #5 safe on the heater elements, or only on stainless? I have two of the ultra low density incoloy elements: one in the BK and one in a RIMS element. The RIMS element gets fairly nasty after a few brews, and recirculating PBW doesn't seem to touch it. Also, what about using caustic on the elements- I have a pound of pure sodium hydroxide that I have been considering running through the system.

And, how do you dispose of Acid #5 once you are done with it?

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Old 06-08-2011, 07:12 PM   #14
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The RIMS element gets fairly nasty after a few brews, and recirculating PBW doesn't seem to touch it. Also, what about using caustic on the elements
PBW *is* caustic.

Have you tried letting the element soak for a while with the PBW solution filling everything? The directions for PBW are to soak overnight and then rinse the next day.
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Old 06-08-2011, 09:51 PM   #15
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Quote:
Originally Posted by Walker

PBW *is* caustic.

Have you tried letting the element soak for a while with the PBW solution filling everything? The directions for PBW are to soak overnight and then rinse the next day.
I didn't think that PBW was a caustic cleaner. I thought they have always touted it as a replacement for caustic soda cleaners which would previously be used by breweries. Maybe I'm wrong though...

I heat some water to about 175, mix in my PBW, then recirculate through my pumps and system for about 30 minutes. I thought I had heard on the brewing network segment with Chris Talley from Five Star that you do need to be careful with copper and aluminum, and that soaking is not advised. Apparently the PBW can really go after those metals when something like an overnight soak is used.

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Old 06-09-2011, 01:02 PM   #16
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My apologies. You are correct... PBW is NOT caustic.

I never heard the BN segment, but every set of instructions I am finding say that it is safe for use on soft metals and an overnight soak is OK.

But... if the guy from 5 star said not to do it, then I would be inclined to believe him.

I've never done an overnight soak of anything other than my stainless kettles. I've done an hour or two with the stuff inside of my copper and then drained it out and left the kettles to soak overnight.

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Old 06-09-2011, 01:14 PM   #17
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Quote:
Originally Posted by Walker View Post
PBW *is* caustic.

Have you tried letting the element soak for a while with the PBW solution filling everything? The directions for PBW are to soak overnight and then rinse the next day.
I've never gotten my element super clean that way. After a PBW circulation, it's still all crusty. Granted, a green scrubbie takes all of that gunk off.
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Old 06-09-2011, 02:27 PM   #18
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The segment on the BN with Five Star was WAY back in like 2006 so I could be making that soaking part up haha.

I'd try a little bit longer of a soak like Walker says and see if that helps you clean up the element on a more regular basis.

Matt

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Old 06-09-2011, 02:29 PM   #19
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I had my first RIMS brew day last weekend and with the exception of my pump acting up everything ran smoothly. After seeing another post about the element gunk I decided to open mine up last night and take a look at the element. I have a ULWD, the one that folds over from plumbingsupply.com I was surprised to see it only had a fine layer of white build up, that wiped off with a wet towell. I was actually pretty happy about that. On the brew day when I ran my sparge water I ran it through the RIMS tube (With the element off) as well, so maybe this helped it? Does anybody elese run there sparge water through the tube as well? I would imagine so.

As far as cleaning the tube and element went at the end of the brew session I just ran hot water and then iodophor through it. Hopefully I can get away with sticking to this cleaning schedule and only have to take it apart every other brew.

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Old 06-11-2011, 05:04 PM   #20
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why would you need to run PBW through your system for an hour?



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