There isn’t an ideal pH. Again, the idea of balancing cleaners is really important in the sense that you don’t want it to be too alkaline or up to the 14 range. However, you need to have little alkalinity in there for the buffering and for some of the wetting and corrosion protection. I think that “ideal” is the wrong word. A safe range for something that should be well balanced is kind of in that 9 – 10 range.