Methods for introducing {HEAD ~ a substantially uniform concentration} of a functional agent into {TAIL ~ a flowing stream} of water using a shaped composition 
Methods for introducing { HEAD ~ a substantially uniform concentration } of a functional agent into { TAIL ~ a flowing stream } of water using a shaped composition
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH