The Freestyle ad says it is alkaline, but the Formulary ad does not: http://stores.photoformulary.com/-st...wan/Detail.bok

The formulary ad is correct!

You can use a stop or a running water rinse with TF-4 or TF-5. The difference is the odor and the pH as well as TF-5 being free of the sediment which is a necessary ingredient in TF-4.

PE