
Splotches on film with DIY ECN2
I've recently acquired all necessary components to make ECN2 dev, bleach and fixer. I followed the official recipe and it looks like it's working fine! I checked the pH and it seems well adjusted. I use the inversion technique and a Patterson tank.
Unfortunately I see splotches on the negatives, even in areas where there's no exposure (mostly visible at the end and start of a roll). On the images they aren't really visible, except for quite dark scenes.
My first thought was that they weren't bleached or fixed correctly, but I rebleached and refixed them without much change.
My second idea was not thoroughly mixed developer, but I was very careful in the second batch and mixed the contents very diligently.
Does anyone have an idea? I'm puzzled.