Anyone have any success using soaked, washed and screened Thrifty-Sorb, http://www.moltan.com/, as a medium or media component? I picked up a 40lb bag at a local automotive parts store for only $7! After washing through a waterlily basket, Cypripediums sit happily in the pure stuff with dormant bud just exposed in pots and a basket outdoors. I'm thinking of mixing it with Cactus/Palm/Citrus potting soil for a potted Arisaema mix. Bonaventure Magrys New Jersey