Add those ingredients in a pot with your UNUSED film in it.
Let it soak for 1 hour and each 15 minutes you give it a quick shake!!
Let it dry with the power of sun or if don't have sun were you live, I recommend you 1-2 minutes in the microwave, each day, for 1 week.
zorzyo, alexyz, mafiosa, paulus74, rik041 & kibs.