Hans, are those times with an archival washer?
Les washes them for an hour in archival washer. Considering that I get payed 600 euros a month, a 30x40cm archival washer would need two-three months worth of paychecks to buy (with normal expenses), so until I can make some more money I'm trying to control my budget.
So far all my prints have come out ok, fiber and raisin, but I won't know if they would stain and fade in a couple decades.
Five fiber prints in my basin float very loosely inside and the water change is good enough I believe.