Hi,
Some people prefer to throw as few a chemicals at a job as poss. An understandable position from a cost point.
I prefer to throw everything i have at it and leave in the fastest amount of time as wages are basically the largest proportion of your expenses.
My advice would be to try using it on every job. Leaving a little crystallized splitter on the floor wouldn't pose too much of a problem in my opinion. It lets you know you have done "the best job possible".
Alternatively you could leave thinking, well if i had used some more cleaning agents in the tank, would it have came up better?
If its clean to begin with then you don't stand to gain anything, but if not then without using splitter in the tank there's always a "what if?".
Personally im still not convinced that splitter is the best way to go though, we use it on hybrid jobs that involve bonnet to allow hot prespray from the tank. Pureclean is chemically the same as the rest of the splitters without the marketing and will do as good a job.
Graeme
Access Cleaning Solutions