The chlorophyl is what makes the leaves green and flushing is to move the excess nutes out of the plants so you dont smoke them via transpiration, the final stage of which is via the stoma which also intake the CO2 for the plant found on the undersides of the leaves

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karmaxul Reviewed by karmaxul on . Flushing Advice, please! I've read many, many threads on this site and have gained a tremendous amount of information. I'm on week 5 of my first grow and still learning. could any of you fine folks out there give me some advice on flushing techniques? Basically, how to flush. Thanks in advance for the help. Rating: 5