[Histonet] Precipitate

[Akemi Allison]

I agree with Tim, but I am curious why tap water is being used to  
make the 70% alcohol instead of DI water.  Tap water has been known  
to have all kinds of contaminates.


Akemi Allison BS, HT (ASCP) HTL
Director
Phoenix Lab Consulting
Tele: 408.335.9994
E-Mail: akemiat3377 <@t> yahoo.com

On Jan 27, 2012, at 6:23 AM, Morken, Timothy wrote:

> Matt, we have seen that in one of our VIP5's and we do weekly hot- 
> water rinse of the first 4 stations. It is the oldest  processor,  
> at about 7 years. That processor had frequent pump-in pump-out  
> errors randomly in the first 3 stations. Finally the service tech  
> decided to "get to the bottom of it" and he found the steel tubing  
> clogged with "sand." It took a whole day to clean it all out. It  
> did not look like formalin salts, but did look like the kind of  
> deposits that you see with hard water in pipes.
>
> Since then, no problems at all.
>
> Tim Morken
> Supervisor, Histology, IPOX
> UCSF Medical Center
> San Francisco, CA, USA
>
> -----Original Message-----
> From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet- 
> bounces <@t> lists.utsouthwestern.edu] On Behalf Of Matt Mincer
> Sent: Thursday, January 26, 2012 5:57 PM
> To: histonet <@t> lists.utsouthwestern.edu
> Subject: [Histonet] Precipitate
>
> Hey Histonet,
>
> We have a client who is having an odd problem with their processor.  
> They are getting "sandy" clogs in station 3. The original thought  
> was that it was formalin salts but the texture and color was wrong.  
> Also, station 3 is 70% which should be weak enough. One of the  
> techs mentioned in passing that the water quality in their town was  
> really bad. I think that the problem is that, like formalin, the  
> alcohol is causing dissolved minerals to be released from the tap  
> water they use to mix their 70%. Has anyone seen this before or am  
> I chasing a harebrained theory? Any thoughts would be greatly  
> appreciated.
>
> Thanks
> Matt
>
> --
> Matthew Mincer
> Tech One Biomedical Services
> 159 N Marion Street, PMB163
> Oak Park, IL 60301
> (708) 383-6040 X 10
> fax (708) 383-6045
> cell (708) 822-3738
>
>
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