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the fill and drain method

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Old 02-14-2009, 06:51 AM
Devin Devin is offline
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Join Date: Feb 2009
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Default the fill and drain method

In these hydro systems using the fill and drain method...how many times should it fill and drain in a 24 hr period and how long should it be full and empty?

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Old 02-14-2009, 06:51 AM
Ron Ron is offline
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Join Date: Jan 2009
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Long enough to wet the roots every 15 or 20 minutes during the light period. You don't need to water during the dark period even though some growers do.

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