Heres what it comes down to. Reverse Osmosis is going to clear the canvas for you. Get you down to pretty pure water and then you can perfectly control the nutrients. I do it. But it may not be necessary for you.

Hard water will effectively reduce yield (because of what I said before).
herbie the love bud Reviewed by herbie the love bud on . water filtration My tap water has a ppm of 300 and ive been buying disstilled water, and i was woundering could a water filter for $200-$300 make the water pure enough to be at about 50 ppm Rating: 5