Buba Blend
Well-Known Member
I have water also ranging above 500ppm. My cheap $150 ebay ro unit has kept ppms below 20 for 2 years. Is your ro water that you make coming out at 70ppms? sounds high.480 out of the tap here in SoCal... It will kill any plant that it touches.. It took me a while to figure out why my plants were always F'd up Over 500 ppm and the EPA says not to drink it... Now I have RO and it's around 70 ppm.