Push childproof cap & turn counter clockwise without spilling or splashing. To lock, push cap & screw tightly.
For slow-running drains, pour 16-oz & for complete clogs, pour 32-oz over the drain.
Allow to work for 15 minutes. For tougher problems, allow 30 minutes.
Use hot water. Repeat steps 2, 3 & 4 if necessary.