Csarli3 years ago000Do you need to add biocides or corrosion inhibitors to this?Riccardo Kitonyo3 years ago-112 Helpful answerNo, this is a ready mix which does not require any further additives.CommentAnonymous Schildkrotus2 years ago+110Alphacool states on their webpage that no additives are inaide this water. They also say you can use it like this because its perfectly filtered.Comment