KoolCat Active Member Feb 20, 2010 #1 Do I use my General Hydroponics (Chemical) pH up/down during flushing? Or just plain H20? Does it need to be R.O water? Thanks, KoolCat
Do I use my General Hydroponics (Chemical) pH up/down during flushing? Or just plain H20? Does it need to be R.O water? Thanks, KoolCat