I aim for 5.7 - 6.2 PH. So you think the Ph being 6.4 for my r\o water will be too high to flush with? It's just hard to treat that amount of water with the tools available to me.

I grew the same strain and didn't even use PH up or down the entire time, I would imagine my PH was pretty damn high the entire time and I got 1LB per light which was great.

Can anyone else chime in? Would make it a shit ton easier to not treat the water, but if I have to I can try to figure out a way.

Also I figured maybe if I do treat the water, I could add Clearex and use less volume or water making the job easier. The Clearex should break the salts down easier than regular r\o water.