The PTS-47 is a Pretreatment Testing Station specifically designed for hemodialysis water treatment systems. It serves as a collection site for the express purpose of analyzing incoming water conditions. It holds four (4) sample valves with the capacity for seven (7) thereby allowing clinical personnel to collect all require feed water tests from one location. Sample ports that are normally found after each required pretreatment device are now routed directly to the PTS-47.