Well... I did a couple more processing since my last message.

Very hot water (over 100F) seemed to help a lot indeed. Vigorous and constant agitation too.
But still unable to totally dissolve the SS...
So I used the coffee filter tip.

It worked well. The solution I obtained from those two tips was clear and without residues.

At least I thought so...

Only to realise after treatment, that the films had this time kind of haze, whitish residues clearly visible by transparency in the low density areas and by reflection of the high density areas.
So after all, I had to "dish wash" the films again in order to get rid of that deposit.

Worse, i realised the next day, after all my equipment had dried that all the tanks, the jobo drum and the gear that touched the SS solution had that whitish deposit too. And it wasn't that easy to wash off !

So a nightmare really....

To the point i'm really questioning the use and the utility of this SS solution step in the pyro process.

Is it absolutely necessary ?
Because if it's to make sure my films last 100 years, I'll happily throw all that SS nightmare to the trash. And I'll live well with a 10 year conservation of my films.
Yes I know, I'm a heretic haha.

The really long term conservation isn't really why I do large format.

Two things I'm 100% certain about is that 1) that batch of SS is never touching my processing gear ever again and that 2) that raw chem provider will never hear from me again.


Thank you all again for your time and your advices.