Designed primarily to use in relatively small doses, to unclog or pep-up plumbing drainsA pure chemical with no adulterants such as aluminum chips or zinc borings that cause harmful, obnoxious fumesCan be used in the home without any annoyanceFull strength of the fast dissolving flakes are protected by air tight moisture-proof packagingCannot crystalize and is harmless to fixtures, chrome or pipingUse as directed