Just checked it out. Never heard of colloidal silver before, but I see it is used to check water safety. That can only be a good thing. It amazes me what use 3D printers can be put to! I understand they will soon be able to print organs now that they can submerge them in plasma first. Brave New World right enough.
Yes I thought they picked a clever name too. They won Shed of the Year a tv contest here in uk. A local firm (to the inventor in Wales) was so impressed he donated and built a new deluxe garden shed for the man, to improve his conditions. Nice story.
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