Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: brummie tom on December 15, 2007, 06:12:08 pm
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would like to know if u fill lets say a 25 litre container out of your wfp tank how long will it keep before it is no longer good for use on windows
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Months
Just keep it of of sun light... If not sure use your TDS meter ;)
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yesterday i took a reading of the water i had left in my backpack as it`s been in it for about 5 months and guess what 000ppm.
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3-4 years, up to now.