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BlueberryNutz
ok, i bought all my stuff finally. i just got a hanna PH/EC meter and all my nutes. my tap water is SHIT! My PPm is reading high 800's to 900. is it unusable? the water is really hard i know that much. im using an ebb and gro that i just bought and i dont wanna have to fill it with several trips to the RO station a couple miles away lol. if i can use my tap water how do i know how much nutes to add? say if i wanted to have a nute solution of 600 ppm for light feeding would i just add my stuff until it rises 600 ppm more than i started off with?