Warning: ... don't be as gullible as I was, upon getting your RO system ... I was under the mistaken belief that RO water is neutral-pH ... I got lazy, didn't bother to check pH, almost destroyed my plants ...
my city water, after the RO, is 4.5, highly acidic ... research led me to discover that tapwater chlorine breaks down into CO2, which acidifies the water, PLUS, the RO unit removes calcium, further acidifying, and removes magnesium ... this calcium and magnesium needs to be replaced somehow ... now, I no longer use my RO water for the plants ... it's easier for me to let the tapwater chlorine evaporate for a day or two, than it is to add the calcium/magnesium, and pH problems ... check your pH !!! ... :smokin: