Yea, the state requirement is under 1,000 ppm, so not quite there.
My GF used to drink it until I realized she was doing so, got her off that right away.
She says her hair feels real funky when she washes it without rinsing with rain water.
Something else I am going to try this grow is Blumats, if you not heard of them they are a water as needed system, heard good things and no bad things about them.
My power is so questionable I worry about going with a pumped drip system, if I lose power my timers will be all off. With this system I just have to worry about keeping the rez filled. I like that, I am a lazy grower, LOL
GR