Cal/Mag in Flush Water??

Discussion in 'Growing Marijuana Indoors' started by Beachbound, Aug 9, 2011.

  1. HI ALL!

    My LA Confidential is a 7-8 week flower strain and on Friday I go into week #6, so I will start watering without nutes from then onto finish. My question is -> Since I us RO Water, do I still put Cal/Mag in it, or use just PLAIN water with Absolutely NOTHING else? :confused:

    How do you FLUSH? ;)
  2. yes you are going to want to just use the plain water in the flush. Cal/mag is a synthetic and has salts and the reason to flush is to rid the salts out of the substrate. Now if you were wanting to reuse the substrate i would suggest using some enzymes in the flush to truly clean the substrate and compost it for a later use.

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