Thrift T-100 Alkaline Based  1-Pound Granular Drain Cleaner
The usual cause for sluggish drains is a build-up of grease, hair, soap scum or bath oils. Most drain cleaners require 2 to 6 hours (or overnight) for results. THRIFT will liquefy hair and grease in less than 60 seconds!  HOT water activates THRIFT's dry, odorless crystals. Within 60 seconds the drain is clear - even on the most difficult drain blockage.