Hey waira had internet problems recently so not been able to get on this. Ive done the run off test with water ph at 6.5 and the final run off was 5.8, using your equation this means my soil has a ph at 4.9 (not sure if I've calculated right) so now what do I do to fix this?? I'm soo confused. My plants still looking healthy id say, not any bad signs yet I think. I'm going to upload some pics tomorrow. Thanks for the help man! :smoking: