04-03-2013, 05:16 PM
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Just Doing My Own Thing
Industry Role:
Join Date: Jan 2011
Location: London, Spain, New Zealand, GFY - Not Croydon...
Posts: 25,041
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Put some water from the tank in a test tube or something similar put it up to the light and look closely.
Can you see fine particles in the water or is 'milky'?
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