Good to hear it worked out for you.Thanks for the Canadian supplier link. Murray. Just ordered from small-town Ontario. One kilogram is more than I need (ya think?!) but I'll give some to friends. The total with shipping is more than Photographers' Formulary (for one pound) but I've had such bad luck and unnecessary/arbitrary expense with customs/brokerage taxes and fees I hesitate to run that mystery risk ordering anything (or even getting a camera repair back or getting a 16mm film back from a festival) from the States.
Should report the Sodium Thiosulfate from the pool supply place in Surrey, BC mentioned in post #15 has been working perfectly.