I have read several older posts on the different soaps but all seem to be dated several years ago so here goes.... What soap is best for the self service HP and FB? Of course needs to be cheap but also work good. Presently the wash is using the FB soap in both. Is this practice ok or do we need to use different ones for the FB and HP? The HP doesn't seem to really look like it has any suds. We will be running this wash as of tomorrow morning and noticed today while going over everything that we are going to be needing soap within the next week or so. I can't remember the name of the FB soap but it was cherry and the label on the white 5 gallon container was black. (poor memory I know). Anyway what is your opinions?