Can soil growers please tell me if you ph your water or not? I've been using ph down haven't fed yet and my run off was 1500ppm..my ph from the tap is around 7.3 and when left for 24-48hours it goes up is that right? Biobizz light mix soil. 600hps light 1.2x1.2x2m tent. Growing 6 autos, I no soil is suppose to be a buffer but if my water is say 8.5 surely it won't buffer it to 6.5? Examples of what other people do would be really appreciated!!