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bonsaiTALK Master
Join Date: Sep-2004
Location: St. Paul
Country: USA
Posts: 272
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The grocery stores in my area have stands that say "RO filtered water". You can filter water pretty fast with a good system - I can do 100 gallons a day from my basement faucet, and yes, they are much cheaper now.
I think that good fertilizers have the trace elements in them that plants need, but I give my trees a trace element boost several times a year for that very reason that RO filtered water has no minerals.
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