Typically one cup of Epson Salts has been suggested as a disinfectant in the bath. I've always thought that Epson Salts was a weak disinfectant, but maybe it's not the Epson Salts, but the amount suggested. It's been reported that as much as 4 cups of Epson Salts is required in hot water with NG for Morgellons and that if you do that, within a week, you skin will be like it has a sunburn and the infected layer of skin can be rubbed off.

If you do this, do it at your own risk and let me know if it also works for you. I would suspect it would also work for Collembola and mites.