> > Of course I have nutrient solutions. But I'm using tap water from a well. I'm > > seriously considering collecting rain water since the PPM ratio (purity?) is > better. > > I may even try Aeroponics.... From what I've heard/read - plant growth is much > > faster. > > > I measured the PPM of my tap water... 330 PPM. Then measured the PPM of some rain > water I collected.... 30 PPM! That is excellent!
I measured the tap on my kitchen sink. It's dripping at exactly 72 BPM.