I have just read through this whole thread and wish to thank Sandy for providing me and most certainly others with a wealth of information.

In regards to the solution ratio debate, I (and I believe probably most others) could not give a damn about how the "official" way of doing it is. In Sandy's explanations he gives a simple example (which is both illustrative as well as a working example) of how to achieve the appropriate mix for the application.

If I want to adjust the total volume of solution "B" or determine how much of a specific chemical I wish to buy I can easily do that by performing simple arithmetic on the examples given.

After awhile reading silly "just to be right" replies gets to be a little tiring. Thankfully Sandy preserved and we all received the useful information intended from this thread.