Well, I used my MSR filter pump to clear up a very cloudy blue Grande.
It worked great, and the water is now very clear, and about half of the blue dye
was removed, making the lamp much lighter.
When cleaning out the pump with distilled water alone, the wash water comes out slightly
blue for the first 200ml, then it runs clear.
However, you know all that dye has to be trapped in that filter, and…
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