Watercure USA Water Softener & Water Filtration Systems 318 Center St, Lockport, NY 14094, United States +17169463598 https://www.google.com/maps?cid=14416052974945267683 Similar to the Longstand, the Standard doesn’t need pre-soaking to activate its filters and steel-attracting meshes, however it does leave a carbon residue if right after when setting up a new filter. https://waylonfgarp.blogofoto.com/33262354/standard-water-filter-things-to-know-before-you-buy