I power up, and then do a “Blow down”, then rinse and refill once a
week on the shop steamer. A couple of years ago I spoke with the
tech guys at Stuller’s in house shop, when I finally got fed up with
rebuilding and resurrecting (Glass level glasses and gaskets,
solenoids, fill valves, etc) the old steamer that was here when I
joined the firm, and we replaced it with a new machine, I wished to
do what I could to increase the new steamer’s lifespan, and the guys
in their shop suggested a product called “Magic Clean Steam”, which
they add at every full water change.
When I began one cap full of Clean Steam as I refill after the blow
down and rinse cycle, I noticed an immediate decrease in rust and
corrosion in my steamer. I am very pleased with the results, and
whatever this stuff is it leaves no residue on jewelry.