I wanted to expand upon my last post a little bit. I have done a lot of research on whether or not to pH the water during flush, and most people are split down the middle. One camp says NO, because the point of flushing is to force the plants to use of their internally stored reserves of nutes providing for a better taste and burn. The other camp says YES, because altering the pH may shock the babies even at this stage and that the babies internal pH is the pH that the grower has been keeping their water pH at, thus altering the pH at this stage will lock up the nute intake inside the plant itself.

I'm thinking of doing a compromise here. I'm using RO water, so all it needs is two or three drops of pH down to get it just into the respectable range (probably get it to 6.6 or so), but I'm thinking of leaving out the cal/mag all together.

ByrdDog55 commented earlier in this thread that two weeks of flush wasn't necessary for hydro, but I'm going to try it out this time around just because I've used high levels of nutes this entire grow.

Any comments/suggestions on the final flush are appreciated, particularly on the use of Cal/Mag and/or pH during the flush.