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Old 09-10-2014, 02:33 PM
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The Grey Man The Grey Man is offline
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As long as the pH of your soil is good then rain water is good. The same applies for pure RO (as far as pH is concerned.) In essence, the soil 'buffers' the pH of the rain water.

This method would work just as well with pure RO water as with rain water but rain water is far more ecologically friendly and easier to collect in most cases.

Rain water is actually very mildly acidic but there is no where near enough acid in there to change the pH of your soil at all.
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Last edited by The Grey Man; 09-10-2014 at 02:36 PM.
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