Units (10), systems (100), and methods with treated water are provided in which a treated water source (12, 104) is included integrally in a host piece of equipment (10, 102). The host piece of equipment (10, 102) includes host functions such as ice making (14, 106). Other equipment, such as dispenser (108) may be coupled to the equipment (102) to share the treated water from treated water source (104).