The fountain solution and mixing system becomes contaminated with a biological growth that feeds on the ingredients in the chemistry, resulting in a degradation of the chemistry.
|Water supply is contaminated with growth.||Treat water with a peroxide or bleach to kill organisms, put in a water process such as RO system.|
|Airborne organisms||Keep lid on recirculator closed and any exposed portion of press dampening system.|
|System becomes contaminated from paper, ink, and other materials.||Stop and clean press mix system, consult chemistry supplier for proper cleaning procedures.|
|Press mix solution is allowed to stand for an extended period of time.||Stop and clean system per the supplier recommendations. Empty tanks and lines in press dampening system if press is going to be down for an extended period of time.|
|Dead spaces in delivery lines and stagnant solution in trays were not properly cleaned or maintained.||Develop a standard operating procedure for a routine cleaning of the press dampening system.|
|Filters||Check and replace filters on a timely basis|