Liquid such as hot and/or cold water may be intro duced into the drum 20 from the pipes 122 and 124 through valves and/or 116 into the passageways 22 and into the drum 20. (The Water fill operation may be controlled by a timer, which also may time and control any other appropriate operations herein disclosed.) The valve 110 and/or 116 may have a constant water flow control and the timer may time t