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We are in the process of trying a different mix with our fountain solution. We are flushing the water system today and cleaning both processors so that we have a clean start for the testing. It will take a week or two before we know if this worked.

I agree that there would be no back tracking. There are two 50 micron filters on the return to the mixer tank, they get changed every couple of days. The other thing of interest is that we have an overflow tank on our mixer and all fountain solution goes thru the filters before this tank and yet...

No foam to speak of. Also we do not have any dust build up anywhere from the web accept at the infeeds and angle bars which is before the towers so I don't think that is where we are getting anything from.

No this is a DGM press with three ink forms, a water form and two transfers. There are no socks on the water roller. The spirial brush makes direct contact with the metering roller.

I won't mention my test lab for now but trust me it is a very reputable source. You are correct we are a newspaper site. I have been working with our fountain solution company and we have been using their product for over two years with no changes in any of our production other than the plates...

I appreciate the responses. I actually have had it tested and now am trying to figure out the source in the printing process. The analysis is that it contains Kaolin clay, cellulose lignin and gum arabic. As far as gum layer goes we had a problem and they put tighter springs on the squeeze...

We are using Agfa N94-VCF plates, Violet CF Gum-NP run thru an Agfa VCF 85 processor. Since we started with the plates we have seen a residue build up in our water pans on the press. This will accumulate and turn to blobbs that plug up the system. Prior to the new plates we never touched our...