OK thanks for the reply; I just went and got a PH test kit and my tap water going in reads 7.4 which I believe is high. I am not that knowledgable when it comes to pH. I mixed up a sample of nutes at full str just out of curiousity and it reads between 6.8-7.0. I got some pH up & down as well. I was hoping someone could tell me the best way to go from here?

Thanks for any help.