I need to mix 4 litres of stabiliser or final rinse to avoid drying marks on my film.

There's no distilled water at the shop and its basically midnight now and I need to process this film so I can post it off in the morning for a telecine.

I happen to have a container of 500g of calgon for photographic chemical use here, and was wondering if this will help avoid drying marks and if I can mix it with stabiliser? (Flexicolor Stabiliser III).

I need a practical answer, I'm off to load the tank now and start the developer stage.