Personally, I'd save the rest of this kit for unimportant rolls, test rolls, playing around type shots. Or just discard it. You dont need to find out 5 years from now the chems went bad and your slides are color shifted and or trashed. If you got close to a years use out of the kit, you got your moneys worth, and then some. Time to order a fresh kit from Maco Direct. Runs around $125-150US, shipping included for the 5 Liter kit which will run up to 60 rolls. Or, order the Tetenal E6/C41 Stabilizer from Maco and get the Arista kit from Freestyle Photo here in US. Just went thru the Arista 1 Gallon kit, with good results. Have a Tetenal kit waiting to be opened, to compare.