If a chemical reaction causes the low ph reading why does the ph read the same when I use RO water??? Again, I just can't quite understand. Maybe it's not really important as these mediums have been around for awhile and are used commercially with success. My background and education are in business. Perhaps I need to go back to school and take some chemistry or botany???
grey1223 Reviewed by grey1223 on . Medium ph vs nutrient ph?????? For some reason I'm having a problem understanding this relationship. When you take promix, or coco and check the ph they come out 5.6 to 6.0. That's measuring by taking a cup of medium, filling with water (tap water at 8.0) and let set for an hour. Drain off and stick ph meter in. Based on this, what is the use of measuring medium ph? If one hand waters with 6.5 nutrient solution the runoff will most certainly be lower than 6.5. I guess I'm trying to understand if the ph of the Rating: 5