tapwater

So I asked my local Waterworks Department (not sure about the correct translation) about the different minerals in my tapwater and got the following numbers: Total dissolved minerals: 510-550mg/l Calcium: 80-90mg/l Magnesium: 23-26mg/l Do you think I should buy additional CalMag or is this...

hello all. My second grow; DWC Hydroponic. My question is; when I mix my nutes as instucted then ck ppm or ec and find ir high, do I dilute with water to bring to proper ppm?? I use coniseur AH products; PH perfect. When mixed as instructed, PPM was 1380; tapwater is 200 before nutes. I just...