Quote Originally Posted by JackdaWack
honestly i would say about 6 drops per gallon, so i would be carefull, distilled water is great for flushing, i ussually just use some poland spring regular non distilled for veggie plants that are weak and my well water for flowering, my water is hard even tho its only 250ppm its loaded wiht calc.
if you put 6 drops of ph down in distilled water which has almost no alkalinity you would probably drop the ph below 4.0 easy. as i said before 1 drop would probably be too much with nothing in there(kh) to buffer the ph!!!