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Quite stumped. I have a batch in the dry tank that is cloudy. It has passed 3/27 with flying colors. tested for soap. Usual routine, first I blanked the IPA, added 10ml BD color remained yellow. pass. Shake test seperates almost immediately with crystal clear water. Heated and bubbled for 4 hours yesterday. This morning I placed a small sample on the hot plate and heated to 120F still cloudy. Wife won't let me use micro for WHW test. NO sense of humor what so ever...

anybody have any ideas what to do with this stuff. I dont want to put in the 6.0 till I know it is good. Situation is urgent because cherries are ripe in Michigan.


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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miket

-If you pass all the test, just keep drying. are you heating and bubbling at the same time? I heat and pump mix from bottom to top but this takes 8 - 16 hrs, depending on outside humidity.
-I know why you can't use the microwave Big Grin Big Grin good call on your wifes part Tom


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Location: Manitoba Canada | Registered: 24 March 2009Reply With QuoteEdit or Delete MessageReport This Post
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In the past this has happened to me and even though I had gotten I good soap test pass I still rewashed one more time and then it was clear. Sometimes transferring from wash to dry tank can get contaminated.. Try rewashing just a small sample and then dry and see if it clears..
Lisa



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Location: TX | Registered: 20 August 2008Reply With QuoteEdit or Delete MessageReport This Post
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quote:
I placed a small sample on the hot plate and heated to 120F still cloudy.

Do a vapor test while heating the sample, or a Hot Pan Test.


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Location: North of 60° | Registered: 03 May 2005Reply With QuoteEdit or Delete MessageReport This Post
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quote:
Originally posted by mike t:
Quite stumped. I have a batch in the dry tank that is cloudy. It has passed 3/27 with flying colors. tested for soap. Usual routine, first I blanked the IPA, added 10ml BD color remained yellow. pass. Shake test seperates almost immediately with crystal clear water. Heated and bubbled for 4 hours yesterday. This morning I placed a small sample on the hot plate and heated to 120F still cloudy. Wife won't let me use micro for WHW test. NO sense of humor what so ever...

anybody have any ideas what to do with this stuff. I dont want to put in the 6.0 till I know it is good. Situation is urgent because cherries are ripe in Michigan.


HMMMMM.....You did not say anything about adding the requisite 20 drops of Bromo Blue. Could this be why the soap test passed? I have never known a sample to go straight to yellow when adding the fuel to the ISO.

Norman
 
Location: Lincoln, NE | Registered: 10 April 2006Reply With QuoteEdit or Delete MessageReport This Post
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sorry thought I covered that when I blanked the IPA. after adding bio color stayed yellow.


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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quote:
Originally posted by mike t:
sorry thought I covered that when I blanked the IPA. after adding bio color stayed yellow.


Maybe I am being dense here, but you blanked the ISO after adding the bromo? I do not think that will work. The idea is to be sure that the ISO is neutral and then add the bromo. Then the HCL to turn the color. The solution should be a bright, solid blue when adding the bio. There should be nothing in the bio to turn it back to yellow, it will only dilute and reduce the blue. Well washed bio should take 4 to 6 drops of HCL to turn.

Norman
 
Location: Lincoln, NE | Registered: 10 April 2006Reply With QuoteEdit or Delete MessageReport This Post
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Makes no sense. heated to 180F and still cloudy. Shouldn't have much water at all at that temp. The next batch in the wash tank is almost ready to transfer over. Soap is 100-150ppm and bright and clear when dried. I do not want a discussion on the usefulness of "bright and clear" as there is nothing scientific about it. It is only a guide.


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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I don't know, everytime I have encountered cloudy bd it has turned out to be water. Did you do a fridge test. If it is water then when it come out of the fridge it will be even more cloudy. Try a vapor test also. And of course the final word on water content is a Imanometer test for us frugal brewers.

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Location: SF Bay Area | Registered: 02 September 2005Reply With QuoteEdit or Delete MessageReport This Post
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How much water should be left after heating to 180F after being heated and bubbled for 5 hours?


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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I don't know Mike, very little if you heated it to the 180f then bubbled it for 5 hours. Is that what you did and if so did you blow a fan on it for the five hours?
 
Location: SF Bay Area | Registered: 02 September 2005Reply With QuoteEdit or Delete MessageReport This Post
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no just heated while bubbling. But even the sample which heated to 180F is still cloudy in spite of passing all the tests. I have never needed the fan before. Humidity today is much lower than earlier this week.


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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Well, if it passes all the water tests it sounds like you have some fuel that should not go into that 6.0. I suppose I would re process it or use it in my stove.
 
Location: SF Bay Area | Registered: 02 September 2005Reply With QuoteEdit or Delete MessageReport This Post
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That is what I was thinking too. what do you think of running that batch in a 7.3


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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Still sounds like soap to me.. I have had it happen several times where I had washed enough but had the stanpipe just a little to close to the soapy water layer and sucked just enough in to make it cloudy. One wash later and I'm good..

Mike I will also say that I just went ahead and put it in my 6.o with no problems.. let a sample sit out and see if you get any soap fallout..



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Location: TX | Registered: 20 August 2008Reply With QuoteEdit or Delete MessageReport This Post
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Already done that. Nothing fell out. I doubt that another wash will do much,shake test gives clear water and immediate separates. It is prety clear but not like usual.


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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7.3 should tolerate it better.


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Location: SF Bay Area | Registered: 02 September 2005Reply With QuoteEdit or Delete MessageReport This Post
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quote:
Originally posted by mike t:
Already done that. Nothing fell out. I doubt that another wash will do much,shake test gives clear water and immediate separates. It is prety clear but not like usual.


Just so I am clear though Mike, I did not get any fallout either.. Just cloudy fuel that had passed the shake test etc.. try just washing a small 1 ltr sample. I'll bet anything you clear up after another wash.. I was stumped too and didnt want to do it because I was soooo convinced that it couldnt be soap but the wash did it and it didnt take long, just a quick wash or two..

question.. when you do the shake test and it separates.. does the fuel dry clear then? Not the water but the fuel on top after it sits for a day or so..



Lisa 2006 Ford F250 6.0L Powerstroke with 12 inch lift


 
Location: TX | Registered: 20 August 2008Reply With QuoteEdit or Delete MessageReport This Post
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Lisa not that I saw. I will try a sample tomorrow


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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Took a sample, added water and shook. I let it settle for a day then reshook. After settling for another day and a half, the water is still as clear as when I put it in. Bio is still slightly cloudy. It is just not as bright as usual.


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Location: northwest Ind | Registered: 20 July 2008Reply With QuoteEdit or Delete MessageReport This Post
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