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diy auto doser
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  1. DIY
    I've looked at the various auto dosers here summarized by Wasserpest, but I did not see anything quite like this one: http://ozreef.org/diy_plans/additives/trace_element_doser.html So far I've only played in the sink with this one, so I don't know how accurate it might be. I plan to set up a...
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