DI = De-ionized IPA = Isopropyl alcohol Wayne WB4OGM On Saturday, November 22, 2025 at 02:25:45 PM MST, Hubert Miller <kargo_cult at msn.com> wrote: Craig, i am unfamiliar with some acronyms. DI = ? IPA = ? I mean, i know the common meaning of IPA, but that's probly not what you meant. -Hue Miller