Applesauce
Active member
I've had this issue from the start. pH cleaning solution, pH calibration fluid, pH storage solution. They all get what appears to be algae strand/debris that form and float in the fluid. In particular, the pH cleaning solution gets white strands that almost resemble mother of vinegar. I keep the bottles out of light and still this occurs. The probe cleaner has an exp. date and is deionized water, pepsin, hydrochloric acid, and methylparaben. I do not cross contaminate. Solutions? Opinions?
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