This invention involves the presence of microvoids in the second coating of the granules to enhance the migration of algaecides contained in {HEAD ~ the first coating} thereby providing {TAIL ~ increased algicidal activity} on the surface of the granules 
providing
This invention involves the presence of microvoids in the second coating of the granules to enhance the migration of algaecides contained in { HEAD ~ the first coating } thereby providing { TAIL ~ increased algicidal activity } on the surface of the granules
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH