{HEAD ~ The power source} connected to the cells produces a chemical reaction that produces {TAIL ~ a flow} of chlorine atoms into the body of water for purifying the body of water 
{ HEAD ~ The power source } connected to the cells produces a chemical reaction that produces { TAIL ~ a flow } of chlorine atoms into the body of water for purifying the body of water
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH