for one thing, this piece of equipment, known as a hydro therapy spa, uses ice cold water.it's designed to prent and heal all kinds of leg injuries by reducing inflammation and improving circulation. >> right now, the horse is standing in 35-degree water. there's a heavy concentration of epsom and sea salts in this water to draw whatever we can out of the legs, any inflamtion, any swelling. if there's an open wound, it acts as a cleanser. uh, the jets are going, like i said. they create circulation through the legs. >> he says it can treat a variety of horse injuries including tendonitis, shin splints, and hoof injuries. catting, a four-ar-old cutting horsfrom lincoln, california will soon be taking part in a show in oregon. andhe seems to love the a treatment just like so many other horses. >> uh, small horses have very small feet. they're very injury prone because they have a very demanding work load. they're always being asked to stop, slide, come back, turn o their legs. >> the spa session lasts about 12 minutes. some horses may get this treatment twice a day, several t