Thread: Dew .. is it bad for telescopes?
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Old 18-06-2014, 04:23 PM
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Pinwheel (Doug)
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Join Date: May 2010
Location: Wimmera victoria
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A drop of detergent yes, Dish washing detergent NO.. it has caustic soda in it for breaking down fat. Caustic soda is a corrosive.
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