I know RO water is a must when it comes to hydro growing but does it have it's advantages in soil too. I mean pure water has to be good no matter which grow media your using right?
I use only RO water in my soil grows. The water where I live is not very good. I used to go and fill up 4 5 gallon jugs 3 times a week. That got old very quick. So I purchased a portable RO system. I filter the water that drains into a 32 gallon rubber garbage can in my watering room (my extra bathroom) with a 50 gallon air pump and stone. I fill it every week or so. So much easier. And easier on my back. But remember to use calmag with RO water.
Agreed. Always use RO water and cal/mag. If you're growing organic they make organic cal/mag as well. Happy growing!