{TAIL ~ The chlorine} or other soluble material within the bag or {HEAD ~ sachet} is dissolved or subjected to a leaching action in the liquid 
{ TAIL ~ The chlorine } or other soluble material within the bag or { HEAD ~ sachet } is dissolved or subjected to a leaching action in the liquid
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH