> One of my artist friends told us that she has been refilling her Epson ink >jet cartridges with Dr. PH Martins watercolors, and that it works fine. She >doesn't shake the bottle, so sludge stays on the bottom, and doesn't get into >the cartridge. Anybody else ever tried this? I'd love to try this--just which colors will substitute for the regular cartridge colors? Does Dr. Martin make process colors? There is also the issue of impermanence--altho who knows how permanent the cartridge color is..?