The dillutuion rate is dependant on the proportioner used. Each unit comes with a chart that will guide you as to which one suits your individual needs. I personally use mine open as I like to get alot of chem up there fast. As far as the chem mixture, that would all depend on what your cleaning and your preferences there too. Each unit comes with a House wash recipe that contains bleach and other easily accessable ingrediants. I will say, and I hope it doesn't offend anyone as that is not my intention, the X-jet like many other specialty tools in this business are just what I said, tools. A tool alone will not perform a job, it takes knowledge, experience, and a little common sense. A hammer is also a tool and in the hands of fine craftsmen will turn out fine cabinetry, however, in the hands of others will only result in a pile of broken lumber with bent nails. I don't want to start a debate here so I will drop this issue and move on.
Glenn
PS: I have an idea, Dan, since you got your X-jet free and don't use or like it whichever, why not send it to csoldier so he can see if he likes it. I'm sure he would be willing to cover the shipping costs and if there's something you are missing like proportioners, proportioner chart, etc. I will send him the missing parts. Hat do ya say? Great idea , or what?