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Bob from Queen Creek, Az writes

What is the cause of a white scum when using Eraser A/P?

I have used Eraser A/P in my 2 gallon Round Up brand sprayer for the past year. When I go out to spray about every two weeks, there is a white scum floating on the top of the water/Eraser mixture left over from the previous usage. This happens throughout the year. This scum continues to clog my spray nozzle as it sinks to the bottom of the sprayer. Please explain what this white scum is and how to avoid getting it. Thanks, Bob


The seperation you are desribing the result of leaving Eraser AP diluted solution in the sprayer. We always recommend to use any diluted solution within 24 hours of mixing. Also, be sure to store your concentrated product in a cool dry area.

Answer last updated on: 06/01/2014

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