In most cases you can dilute an ink as much as you want with something like Noodler's Blue Ghost and still maintain a usable flow for a fountain pen. The same cannot be said for distilled water.
I have a surfactant (Kodak Photo Flo) which I can use to reduce the surface tension thus making the ink wetter or flow better. I want to mix the surfactant with water to achieve a solution that could be used to dilute an ink while still maintaining good/usable flow (similar to how Blue Ghost can be used).
The obvious solution is trial and error of mixing concentrations, diluting some inks, and writing with them until I find a surfactant concentration that I feel writes well. However, that is tedious and subjective.
Does anyone have ideas on how to do this more efficiently or objectively?
Edit: Note: I fail at titles.
Edited by vossad01, 14 July 2014 - 03:30.